Conference Agenda

Topical Meetings and Sessions:

TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and applications
TOM 7 - Thermal radiation and energy management
TOM 8 - Non-linear and Quantum Optics
TOM 9 - Opto-electronic Nanotechnologies and Complex Systems
TOM 10 - Frontiers in Optical Metrology
TOM 11 - Tapered optical fibers, from fundamental to applications
TOM 12 - Optofluidics
TOM 13 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session

More information on the Topical Meetings

Select a date or location to show only sessions at that day or location. Select a single session for a detailed view (with abstracts and downloads when you are logged in as a registered attendee). The rest of the TOM sessions, EU project session, tutorials, and Early Stage Researcher session will be updated soon. Thank you for your patience!

Session Overview
Date: Thursday, 15/Sept/2022
8:30am - 10:00amTOM1 S05: Silicon Photonics and Guided-Wave Optics
Location: B116
Session Chair: Claudio Oton, Scuola Superiore Sant’Anna,, Italy
8:30am - 9:00am
ID: 385 / TOM1 S05: 1
TOM 1 Silicon Photonics and Guided-Wave Optics

High performance Si photonics devices

Daoxin Dai

Zhejiang University, China, People's Republic of

High performance Si photonics devices

9:00am - 9:30am
ID: 384 / TOM1 S05: 2
TOM 1 Silicon Photonics and Guided-Wave Optics

Self-adaptive photonic integrated processors for communication and computing

Andrea Melloni

Politecnico di Milano, Italy

Self-adaptive photonic integrated processors for communication and computing

9:30am - 10:00am
ID: 387 / TOM1 S05: 3
TOM 1 Silicon Photonics and Guided-Wave Optics

Design of an on-chip optical phase array systems for satellite communicationsc

Hugh Podmore, Akash Chauhan

Honeywell Aerospace, United States of America

Design of an On-Chip Optical Phase Array Systems for Satellite Communicationsc

8:30am - 10:00amTOM10 S03: Frontiers in Optical Metrology: Imaging techniques and resolution
Location: B031
Session Chair: Ivano Ruo Berchera, INRIM, Italy
8:30am - 9:00am
ID: 341 / TOM10 S03: 1
TOM 10 Frontiers in Optical Metrology

Achieving the ultimate optical resolution

Luis L. Sanchez-Soto1,2, Zdenek Hradil3, Jaroslav Rehacek3, Benjamin Brecht4, Christine Silberhorn4

1Universidad Complutense de Madrid, Spain; 2Max Planck Institute for the Science of Light, Erlangen, Germany; 3Department of Optics, Palacky University, Olomouc, Czech Republic; 4Integrated Quantum Optics Group, Paderborn University, 33098 Paderborn, Germany

The accurate estimation of the separation between two signals is at the core of many modern technologies. We show new quantum-inspired schemes able to estimate that separation at the quantum limit. The method works in the spatial, temporal, and frequency domains. The question of whether the optical coherence brings any metrological advantage to mode projections is discussed.

9:00am - 9:15am
ID: 132 / TOM10 S03: 2
TOM 10 Frontiers in Optical Metrology

A virtual microscope for simulation of Nanostructures

Poul-Erik Hansen1, Lauryna Siaudinyte2

1DFM, Denmark; 2VSL, The Netherlands

Light-matter interplay is widely used for analyzing the topology of surfaces on small scales for use in areas such as nanotechnology, nanoelectronics, photonics, and advanced materials. Conventional optical microscope imaging methods are limited in resolution to a value comparable to the wavelength, the so-called Abbe limit, and cannot be used to measure nano-sized structures. Scatterometry is an optical method that can measure structures smaller than the wavelength. However, the relative uncertainties of the structure dimensions measured with scatterometry increase with decreasing structure size, and the industry is therefore looking for replacing simple intensity based scatterometry with a phase-sensitive measurement method such as coherent Mueller ellipsometry. In this work, we present a virtual microscope capable of simulating the coherent Mueller ellipsometry and scatterometry response from one-dimensional and two-dimensional periodic structures. Furthermore, we argue that coherent nonnormalized Mueller ellipsometry gives results with less uncertainties than standard normalized Mueller ellipsometry.

9:15am - 9:30am
ID: 178 / TOM10 S03: 3
TOM 10 Frontiers in Optical Metrology

Polarization dependency of the 3D transfer behavior in microsphere enhanced interferometry

Lucie Hüser, Tobias Pahl, Peter Lehmann

University of Kassel, Germany

Enhancing the lateral resolution limit in optical microscopy and interferometry is of great interest in recent research. In order to laterally resolve structures including feature dimensions below the resolution limit, microspheres applied in the optical near-field of the specimen are shown to locally improve the resolution of the imaging system. Experimental and simulated results following this approach obtained by a high NA Linnik interferometer are analyzed in this contribution. For further understanding of the transfer characteristics, measured interference data are compared with FEM (finite element method) based simulations with respect to the polarization dependency of the relevant image information.

9:30am - 9:45am
ID: 113 / TOM10 S03: 4
TOM 10 Frontiers in Optical Metrology

Influence of camera temperature on MTF measurements with finite image distance

Markus Schake, Michael Schulz

PTB, Germany

Line Spread Function (LSF) based Modulation Transfer Function (MTF) measurements with finite image distance are sensitive to displacement errors in axial direction. Axial displacements between the sample and camera detector cause defocusing and thus, a MTF error proportional to the axial gradient of the sample's MTF. This article demonstrates the influence of the camera temperature on the focus position in the MTF reference setup at PTB.

8:30am - 10:00amTOM3 S07: Optical System Design, Tolerancing and Manufacturing
Location: B032
Session Chair: Sven Schröder, Fraunhofer IOF, Germany
8:30am - 9:00am
ID: 318 / TOM3 S07: 1
TOM 3 Optical System Design, Tolerancing and Manufacturing

Large metal mirrors for atmospheric telescopes

Guoyu Yu1, David Walker1,2,3, Hongyu Li1, Abdullah Shahjalal1, Trevor Walker4

1University of Huddersfield, United Kingdom; 2Zeeko Ltd, United Kingdom; 3University College London, United Kingdom; 4Thin Metal Films Ltd, United Kingdom

We are developing technologies in processing and metrology to fabricate a 1.4-meter aperture, aspherical surface Aluminium prototype mirror for Cherenkov Telescope Array. The aim is to fast process these large aperture mirrors at low cost. The technical development will ensure the high specifications on the surface quality. Different metrology methods including Swinging Arm Profilometry (SAP) and phase measuring deflectometry (PMD) are being developed. Recent results have shown very promising progress on these developments. We have excellent record in transferring our research results into industry. These cutting-edge technologies will be transferred to our industry partner to explore further developments.

9:00am - 9:15am
ID: 312 / TOM3 S07: 2
TOM 3 Optical System Design, Tolerancing and Manufacturing

Dynamic optimization of optical design process by means of producibility modulations

Olga Resnik1, Oliver Faehnle2, Yosi Arazi1

1JoYa Team; 2OST – Ostschweizer Fachhochschule, Switzerland

While optical design translates the application parameters of optical systems such as MTF and image resolution into a set of well-defined technical drawings, their manufacturability can only be assessed retrospectively, e.g. with PanDao. In this Paper, PanDao is being dynamically applied during the optical design process allowing to take producinbility aspects into account from the beginning on.

9:15am - 9:30am
ID: 239 / TOM3 S07: 3
TOM 3 Optical System Design, Tolerancing and Manufacturing

Optical methods for measuring the feature size of optical diffraction gratings with nano-meter accuracy and implementation of suitable feedback control loops

Thomas Flügel-Paul1, Martin Heusinger1, Kristin Gerold1, Adriana Szeghalmi1, Uwe Zeitner1,2

1Fraunhofer Institute For Applied Optics And Precision Engineering, Germany; 2Institute of Applied Physics, Friedrich-Schiller-Universität Jena, Germany

Surface relief diffraction gratings offer a high flexibility in their design and thus allow to synchronize their optical performance with the specific requirements of the underlying application. However, the accuracy and the specific control of the manufacturing processes are of vital importance. In this contribution, we present optical methods relying on white-light ellipsometry and how they can be exploited for the measurement of the critical dimensions of manufactured surface relief grating structures. We will furthermore present suitable processes (relying on atomic layer deposition) and how they are used in a feedback loop to control the grating’s feature sizes on the nanometer scale.

9:30am - 9:45am
ID: 331 / TOM3 S07: 4
TOM 3 Optical System Design, Tolerancing and Manufacturing

Advances in Robot Pre-Polishing platforms and mid-spatial removal technologies

Richard Freeman, Christopher King, Oliver Pakenham-Walsh, Kathryn Copson

Zeeko Ltd, United Kingdom

This paper documents the development of a Freeform Pre-Polisher that integrates Zeeko's well established Bonnet Polishing Technology, to a regular 6-Axis industrial Robot.

This platform is then used to test a novel new mid-spatial removal tool on different materials and the results of which are reported and discussed.

8:30am - 10:00amTOM5 S04: Resonant Nanophotonics
Location: B120
Session Chair: David Hunger, Karlsruhe Institute of Technology, Germany
8:30am - 9:00am
ID: 370 / TOM5 S04: 1
TOM 5 Resonant Nanophotonics

Bio-inspired polaritons: resonant photonics with organic matter.

Carla Estévez-Varela1, Miguel Augusto Castillo2, Martin Lopez-Garcia2, Isabel Pastoriza-Santos1, Sara Núñez-Sánchez1

1Functional NanoBioMaterials Group, CINBIO-University of Vigo, Vigo, Spain; 2Natural and Artificial Photonic Structures Group, International Iberian Nanotechnology Laboratory, Braga, Portugal

Photosynthesis is a phenomenon that has fascinated humanity from ancient times. The complexity of the natural photosynthetic structures and their molecular components makes it difficult to work out the mechanism that governs their efficiency. Under this complexity, there are structural rules with molecular spatial distributions at the nanoscale repeated between different photosynthetic life entities, such as bacteria or plants. In this seminar, I will introduce a revolutionary organic platform inspired by compact molecular distributions of photosynthetic complexes which can be exploited to transport photon energy/information through polaritonic optical excitations. I will continue explaining to you our results by applying them to self-standing polymer photonic structures inspired by photosynthetic organelles. Finally, I will show our last results simulating real photosynthetic organelles at the nanoscale which will lead us to an open question: can be natural organelles using polaritonic resonances at the nanoscale achieve these extraordinary efficiencies?

9:00am - 9:15am
ID: 124 / TOM5 S04: 2
TOM 5 Resonant Nanophotonics

Dark-field scanning Hyperspectral imaging of SiGe dewetted Mie resonator

Luca Fagiani1,2, Nicoletta Granchi3, Marco Salvalaglio5,6, Chiara Barri1,2, Andrea Ristori3, Michele Montanari3, Massimo Gurioli3, Marco Abbarchi4, Axel Voigt5,6, Francesca Intonti3, Maria Antonietta Vincenti7, Monica Bollani2

1Department of Physics, Politecnico di Milano, Milano, Italy; 2Institute of Photonic and Nanotechnology - Consiglio Nazionale delle Ricerche, LNESS laboratory, Como, Italy; 3LENS and Department of Physics and Astronomy, University of Florence, Sesto Fiorentino, Italy; 4Aix Marseille Univ, Université de Toulon, CNRS, IM2NP Marseille, France; 5Institute of Scientific Computing, TU Dresden, Dresden, Germany; 6Dresden Centre for Computational Materials Science (DCMS), TU Dresden, Dresden, Germany; 7Department of Information Engineering, University of Brescia, Brescia, Italy

All-dielectric, sub-micrometric particles obtained through solid state dewetting support Mie resonances together with a high quality monocrystalline composition. Although the scattering properties of these systems have been qualitatively investigated, a precise study on the impact given by the effective complex morphology of a dewetted nanoparticle to the Mie scattering properties is still missing. In this work, by using morphological characterization, phase field modelling and light scattering simulation, we provide a realistic overview of the single scatterer optical properties. Dark-field Scanning Hyperspectral Imaging experiments are then performed, for the first time, allowing to map in real space the distribution of multipolar modes and to reconstruct the scattering pattern also at angles wider than the numerical aperture of conventional microscope objective lenses. We find an excellent agreement between the experimental and theoretical scattering cross-sections.

9:15am - 9:30am
ID: 252 / TOM5 S04: 3
TOM 5 Resonant Nanophotonics

Exploring subradiant optical modes in subwavelength arrays of quantum emitters

María Blanco de Paz1,2, Alejandro González-Tudela3, Paloma A. Huidobro2

1Instituto de Telecomunicações, Portugal; 2Donostia International Physics center, Spain; 3Institute of Fundamental Physics, Spain

We studied the optical response of quantum metasurfaces consisting in quantum emitters arranged as non-Bravais lattices. Reducing the symmetries of the system by tuning either the lattice or the quantum emitters we are able to access new types of light matter interactions, such as the quasi-bound states in the continuum and exotic Dirac dispersions.

9:30am - 9:45am
ID: 302 / TOM5 S04: 4
TOM 5 Resonant Nanophotonics

Figure of merit comparison between Surface Plasmon Resonance and Bloch Surface Waves

Bernardo Dias1,2, José M. M. de Almeida1,3, Luís C. C. Coelho1,2

1INESC-TEC, Portugal; 2Department of Physics and Astronomy, Faculty of Sciences, University of Porto; 3Department of Physics, School of Science and Technology, University of Trás-os-Montes e Alto Douro

The sensing performance of two types of electromagnetic surface waves are compared, a Surface Plasmon Polariton, where a gold thin film is used, being a standard material in biosensing applications; and a Bloch Surface Wave, using a photonic crystal made of a stack of silica and titanium dioxide layers. It is verified that the sensing performance (as measured by the Figure of Merit) of the gold film is higher, even though the Bloch Surface Waves can serve specific applications due to its narrow bandwidth. At the same time, it is concluded that further research must be made in order to choose the right set of parameters that maximize the Bloch Surface Wave performance.

8:30am - 10:00amTOM6 S03: Optical Materials: crystals, thin films, organic molecules and polymers, syntheses, characterization and devices: Optical materials and devices
Location: B231
Session Chair: Sebastien Montant, CEA CESTA, France
8:30am - 9:00am
ID: 347 / TOM6 S03: 1
TOM 6 Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and devices

Classical and quantum light sources based on colloidal semiconductor nanocrystals

Francesco Di Stasio

Istituto Italiano di Tecnologia, Italy

Here I will present some recent application of semiconductor nanocrystals in optoelectronic devices such as light-emitting diodes (LEDs), and single photon emitters (SPEs). In particular I will focus on how III-V semiconductor nanocrystals such as InAs are promising candidates for RoHS complaiant near- infrared LEDs, and how the solution processing of colloidal nanocrystals can be exploited for the fabrication of small-footprint electrically driven SPEs.

9:00am - 9:15am
ID: 194 / TOM6 S03: 2
TOM 6 Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and devices

Thermal effects reduction in a diode side-pumped rod-like bonded α-quartz||Nd:glass||α-quartz amplifying medium

Thomas Dubé1,2, Patrice Camy2, Sébastien Montant1

1CEA CESTA, 33116 Le Barp, France; 2CIMAP ENSICAEN, UMR 6252, 6 boulevard du Maréchal Juin, 14050 CAEN Cedex, France

We present a numerical study of a square-shape rod-like bonded laser gain medium operating at 1053 nm. The sample is composed of a 5-mm thick Nd-doped phosphate glass bonded to two α-quartz crystals. Owing to this face cooling scheme, the heat generated in the gain medium is effectively reduced, hence resulting in less optical distortions. The simulation of the thermomechanical effects was conducted using COMSOL MultiPhysics® software. Transverse wavefront distortion and birefringence profiles were computed for a given pump mean power. Wavefront and birefringence measurements will be conducted on the bonded sample using a pump-probe setup which is discussed in this paper. These measurements will be presented and weighed with the numerical results.

9:15am - 9:30am
ID: 128 / TOM6 S03: 3
TOM 6 Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and devices

Design and investigation of a low-threshold organic laser diode using mixed-order DFB cavities

Yara El Droubi, Quentin Gaimard, Jeanne Solard, Mahmoud Chakaroun, Azzedine Boudrioua

Université Sorbonne Paris Nors, France

In this work, we experimentally and theoretically investigate the optical and electrical optimization of an OLED associated to a mixed-order DFB cavity. We, firstly focus on the design and the fabrication of a mixed-order DFB cavity with a high quality factor. We particularly study the impact of the deposition of the organic layers on the topology and the quality factor of the cavity.

9:30am - 9:45am
ID: 295 / TOM6 S03: 4
TOM 6 Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and devices

Organophosphorus emitters for OLEDs

Muriel Hissler1, Pierre-Antoine Bouit2, Denis Tondelier3, Bernard Geffroy4

1University of Rennes 1, France; 2University of Rennes 1, France; 3Ecole Polytechnique; 4Ecole Polytechnique

In this paper, we present the development of OLEDs using organophosphorus derivatives as emitters. In this study, we were able to show that the structural variations carried out on phospholes, phosphinines and phosphepines (functionalization of the phosphorus atom, nature of the substituents) make it possible to modulate the emission wavelengths and, thus, the emission colour of the diodes. Using this concept, we were able to develop TADF and chiral organophosphorus emitters and hybrids emitting at different wavelengths which can be used for the development of OLEDs. The diode structures used are simple and provide high external quantum yields

9:45am - 10:00am
ID: 118 / TOM6 S03: 5
TOM 6 Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and devices

Simultaneous oscillation of dual optical parametric oscillators on monolithic chi(2) nonlinear photonic crystals

KaiHsun Chang1,2, ChiaChun Fan1, MingShung Tsai1, FuHsiang Yang1, Safia Mohand Ousaid2, Azzedine Boudrioua2, LungHan Peng1

1National Taiwan University, Taiwan; 2Université Paris 13, France

Simultaneous oscillation of two pairs of signals and idlers was demonstrated. We also showed the efficiency of the sum frequency generation of two idlers was comparable with second harmonic generation of each idler. Our design shows the potential of building multi-wavelength laser source from UV to NIR on monolithic crystal.

8:30am - 10:00amTOM8 S04: Nonlinear and Quantum Optics 4
Location: B328
Session Chair: Hanna Le Jeannic, CNRS, France
8:30am - 9:00am
ID: 363 / TOM8 S04: 1
TOM 8 Non-linear and Quantum Optics

Quantum imaging with entangled photons

Hugo Defienne

School of Physics and Astronomy, University of Glasgow, United Kingdom


9:00am - 9:30am
ID: 362 / TOM8 S04: 2
TOM 8 Non-linear and Quantum Optics

Quantum technologies with single molecules and photons

Costanza Toninelli, Maja Collautti

CNR-INO, Italy

This presentation will be presented by Maja Collautti.

The generation and manipulation of quantum states of light is required for key applications, such as photonic quantum simulation, linear optical quantum com- puting, quantum communication proto- cols, and quantum metrology. In this con- text, single organic molecules in the family of polycyclic aromatic hydrocar- bons (PAH), once embedded in suitable host matrices, offer competitive proper- ties and key advantages. Being very small and with well-defined transition dipole moments, they can be used as nanoscopic sensors of e.g. pressure, strain, temperature, electric and magnet- ic fields, as well as optical fields. Fur- thermore, PAH molecules can be easily fabricated and exhibit strong zero- phonon lines, which reach their Fourier- limited natural linewidth at liquid helium temperature, thus providing very bright and stable sources of coherent photons in the solid state.

9:30am - 9:45am
ID: 266 / TOM8 S04: 3
TOM 8 Non-linear and Quantum Optics

Single atom photon pair source

Jürgen Volz, Xinxin Hu, Garbiele Maron, Luke Master, Lucas Pache, Arno Rauschenbeutel

Department of Physics, Humboldt Universität zu Berlin, Germany

Sources of entangled photon pairs are a crucial ingredient for many applications in quantum information and communication. Of particular interest are narrow-band sources with bandwidths that are compatible with solid state systems such as atomic media for storage and manipulation of the photons. Here, we experimentally realize a source of energy-time entangled photon pairs where the photons pairs are generated by scattering light from a single two-level atom and separated from the coherently scattered light via a narrow-band filter. We verify the performance of our pair-source by measuring the second order correlation function of the atomic fluorescence and we observe that one can continuously tune the photon statistics of the atomic fluorescence from perfect photon anti-bunching to strong photon bunching expected for a photon pair source. Our experiment demonstrates a novel way to realize a photon pair source for photons with spectral bandwidths and resonance frequencies that are inherently compatible with atomic media.

9:45am - 10:00am
ID: 200 / TOM8 S04: 4
TOM 8 Non-linear and Quantum Optics

Fourier-limited attosecond pulse generation with magnetically pumped high-order harmonic generation

Rodrigo Martín-Hernández, Luis Plaja, Carlos Hernández-García

Universidad de Salamanca, Spain

After more than two decades of attosecond physics, the generation and control of the shortest laser pulses available remains as a complex task. One of the main limitations of reducing the temporal duration of attosecond pulses emitted from high-order harmonic generation (HHG) is the attochirp. In this contribution, we demonstrate that HHG assisted by strong fast oscillating magnetic fields enables the generation of Fourier-limited attosecond pulses in the water window. In short, the magnetic field generates a nanowire-like structure, which transversally confines the electronic wavefunction in the HHG process. We demonstrate that the resulting HHG spectrum extends well beyond the semiclassical cutoff frequency, and most interestingly, it is emitted in the form of few-cycle, Fourier-limited, attosecond pulses.

10:00am - 10:30amCoffee Break - Visit the Exhibition
Location: Lunch & Coffee Tent
10:30am - 11:15amPLENARY SPEECH: Jacqueline Bloch
Location: Auditorium
Session Chair: Said Rodriguez, AMOLF, Netherlands, The

Professor at Centre de Nanosciences et de Nanotechnol, France

Title: Polariton quantum fluids in semiconductor lattices

11:15am - 12:00pmPLENARY SPEECH: Arno Rauschenbeutel
Location: Auditorium
Session Chair: Sylvie Lebrun, Laboratoire Charles Fabry, France

Professor at Department of Physics, Humboldt-Universität zu Berlin, Germany

Title: Seeing A Single Atom Where It Is Not

12:00pm - 1:00pmPOSTER SESSION and Exhibition
Location: Hallway

The same posters will be presented as in Wednesday's session.

1:00pm - 2:30pmLUNCH - Visit the Exhibition
Location: Lunch & Coffee Tent
2:30pm - 3:15pmPLENARY SPEECH: Joseph Howard
Location: Auditorium
Session Chair: Marco Hanft, Carl Zeiss AG, Germany

Optical Engineer at NASA Goddard Space Flight Center, United States

Title: Commissioning the James Webb Space Telescope

3:15pm - 3:30pmHighlight on JEOS:RP, Herve C Lefevre
Location: Auditorium
Session Chair: Gilles Pauliat, Laboratoire Charles Fabry, institut d'Optique, France

Chief Science Officer at iXblue, France

Title: Comments about Dispersion of Light Waves

3:30pm - 4:00pmCoffee Break - Visit the Exhibition
Location: Lunch & Coffee Tent
4:00pm - 5:30pmEU S02: EU Project Session
Location: B324

Talks in this session:

  • Valdas Pasiskevicius (Project: LEMON), Lidar Emitter and Multispecies greenhouse gases Observation iNstrument
  • Marta Zanoletti (Project: VASCOVID), Portable platform for the assessment of microvascular health in COVID-19 patients at the intensive care
  • Anurag Behera (Project: TinyBrains), Bio-photonic imaging of the infant brain, the missing link between the cellular brain damage and the neurovascular unit during acute illness
  • Alessandro Trenti (Project: UNIQORN), Affordable Quantum Communication for Everyone: Revolutionizing the Quantum Ecosystem from Fabrication to Application
  • Monica Bollani (Project: NARCISO), NAtuRal instability of semiConductors thIn SOlid films for sensing and photonic applications
4:00pm - 5:30pmTOM1 S06: Silicon Photonics and Guided-Wave Optics
Location: B116
Session Chair: Frederic Gardes, Southampton University, United Kingdom
4:00pm - 4:30pm
ID: 388 / TOM1 S06: 1
TOM 1 Silicon Photonics and Guided-Wave Optics

State-of-the-art and next-generation integrated photonic design

James Pond1, Xu Wang1, Federico Duque Gomez1, Ahsan Alam1, Sebastian Gitt1, Dylan McGuire1, Jeff Young2, Gilles Lamant3

1Ansys, Inc.; 2University of British Columbia; 3Cadence Design Systems, Inc.

The relentless need for higher bandwidth, lower power and lower cost data communications has driven tremendous innovation in integrated photonics in recent years. This innovation has been supported by state-of-the-art electronic-photonic design automation (EPDA) workflows, which enable process design kit (PDK) centred schematic driven design and layout, as well as statistically enabled electro-optical simulation. In addition, custom components can be introduced and optimized for a specific foundry process using advanced methods such as photonic inverse design and machine learning. While much of the innovation has been motivated by data communications, it has enabled a variety of different applications such as sensing, integrated LiDAR and quantum information technologies. We discuss the latest innovations in EPDA workflows and show how a silicon photonic ring-based wavelength demultiplexing (WDM) system can be easily designed, simulated and implemented. In addition, we discuss the extension of these workflows to support the design and simulation of quantum photonic devices, enabling designers to consider the effects of realistic sources and manufacturing imperfections when designing quantum building blocks to meet specific fidelity and fault tolerance thresholds.

4:30pm - 5:00pm
ID: 389 / TOM1 S06: 2
TOM 1 Silicon Photonics and Guided-Wave Optics

Photonics integrated circuits for operation in the near-UV wavelength range

Sonia Garcia Blanco

University of Twente, Netherlands, The

Al2O3 is an emerging integrated photonic platform that has recently grown in interest thanks to its wide transparency window, with low loss propagation above 200 nm and into the mid-infrared and its high solubility for rare-earth ions, which enable amplification and optical gain at different wavelength ranges. In this presentation, we will introduce our latest results on this platform.

5:00pm - 5:30pm
ID: 376 / TOM1 S06: 3
TOM 1 Silicon Photonics and Guided-Wave Optics

Interferometers on chip for sensing applications

Claudio Oton

Scuola Superiore Sant’Anna,, Italy

In this presentation I will overview different integrated-optic technologies for sensing applications, in particular for spectroscopy, intertial sensors, fiber sensor interrogators, chemical sensing, etc. I will also discuss different techniques for phase demodulation, and show some strategies to reduce unwanted effects such as temperature drift, fabrication deviations, nonlinearities, polarization dependence, etc.

4:00pm - 5:30pmTOM10 S04: Frontiers in Optical Metrology: Non-classical and non conventional methods
Location: B031
Session Chair: Bernd Bodermann, Physikalisch-Technische Bundesanstalt, Germany
4:00pm - 4:30pm
ID: 342 / TOM10 S04: 1
TOM 10 Frontiers in Optical Metrology

From quantum imaging to quantum reading and pattern recognition by quantum correlations

Ivano Ruo Berchera

INRIM, Italy

The use of quantum states of light, such as entanglement and squeezing, allows surpassing the limitation of conventional measurement essentially increasing the amount information extracted about an object under investigation for a fixed probing energy. While quantum metrology deals with the estimation of an unknown value of a parameters encoded in a state or a physical transformation

(quantum channel), quantum hypothesis testing deals with the discrimination among discrete values characterized beforehand.

4:30pm - 4:45pm
ID: 300 / TOM10 S04: 2
TOM 10 Frontiers in Optical Metrology

Reconstruction of coherence matrix in x-representation using nonclassical Hartmann sensor

Marek Vitek1, Michal Peterek1, Dominik Koutny1, Martin Paur1, Bohumil Stoklasa1, Libor Motka1, Zdenek Hradil1, Jaroslav Rehacek1, L.L. Sanchez-Soto2

1Palacky University, Czech Republic; 2Universidad Complutense Madrid

We show the coherence properties of a signal can be measured by a Hartmann wavefront sensor in a nonclassical regime. Recasting the detection theory of the classical Hartmann sensor in the sense of quantum tomography enables to measure the coherence function, which is an analogy to the density matrix of mixed quantum states. Two methods were tested for the reconstruction of the coherence matrix from the intensity scan in the nonclassical mode of the Hartmann sensor. The reconstruction was performed in a classic way using the POVM matrix and using data pattern tomography.

4:45pm - 5:00pm
ID: 275 / TOM10 S04: 3
TOM 10 Frontiers in Optical Metrology

Stokes CMOS polarimetry limits studied at non-classical polarisation states

Eva Roiková, Štěpán Kunc

Technical University of Liberec, Czech Republic

We present the study of the two polarisation state analysers. The first consists of a polarisation camera with a removable QWP, and the second consists of a non-polarisation camera with a rotating QWP and a stationary linear polariser. The theoretical analysis and experiment focus on studying the influence of polarimeter optical components accuracy and errors such as retardation errors, misalignments and extinction ratio on Stokes parameters precision. This research is a cornerstone to understanding polarisation state analysers limits. We examined laser beams with non-classical polarisation distribution, namely the Poincaré beam and the beam with radial polarisation.

5:00pm - 5:15pm
ID: 304 / TOM10 S04: 4
TOM 10 Frontiers in Optical Metrology

Fabrication influences on a miniaturised stokes polarimeter consisting of stacked nano-optical wire grid polarizer and retarders

Thomas Siefke, Markus Walther, Carsten Stock, Uwe Zeitner

FSU Jena, Germany

The polarization properties of light can be fully controlled with nano-optical wire grid polarizers and artificial birefringent grating structures. We demonstrate an integrated polarimeter based on stacked layers of such elements. However, the optical performance of such elements is fundamentally limited and may be further altered by deviations arising from the fabrication processes. In this contribution we investigate the influences on the polarimetry performance for such a device.

4:00pm - 5:30pmTOM5 & TOM8 S01: Joint session
Location: B035
Session Chair: Said Rodriguez, AMOLF, Netherlands, The
4:00pm - 4:30pm
ID: 365 / TOM5 & TOM8 S01: 1
TOM 8 Non-linear and Quantum Optics

Photo-induced nonlinearities in silicon nitride nanophotonics

Camile-Sophie Bres

Photonic Systems Laboratory, EPFL, Switzerland

We cover recent work on photo-induced second order nonlinearities in silicon nitride waveguides and microresonators. The all-optical inscription of second order nonlinearity through the coherent photogalvanic process has been shown to allow for efficient and versatile second harmonic generation, as well as difference-frequency generation and spontaneous parametric down conversion in waveguides. We will show that such all-optical poling also occurs in resonators combining resonant enhancement without sacrificing tunability. In addition, we confirm that several multiphoton absorption processes can occur simultaneously, allowing for the inscription of distinct charge gratings for quasi-phase matching of several 2nd order nonlinear processes in the same device. Such flexible second order nonlinearity phase matching capability positions silicon nitride, as an excellent platform to explore complex physics of combined second and third order nonlinear effects in integrated photonics

4:30pm - 4:45pm
ID: 203 / TOM5 & TOM8 S01: 2
TOM 8 Non-linear and Quantum Optics

Spontaneous parametric down-conversion from GaAs nanowires at telecom wavelength

Grégoire Saerens1, Ngoc My Hanh Duoeng1, Alexander Solntsev2, Artemios Karvounis1, Thomas Dursap3, Philippe Regreny3, Andrea Morandi1, Robert J. Chapman1, Andreas Maeder1, Alexandre Danescu3, José Penuelas3, Nicolas Chauvin3, Rachel Grange1

1ETH Zuerich, Optical Nanomaterial Group, Institute for Quantum Electronics, Department of Physics, 8093 Zuerich, Switzerland; 2University of Technology Sydney, School of Mathematical and Physical Sciences, Ultimo NSW 2007, Australia; 3Univ. Lyon, CNRS, ECL, INSA Lyon, UCBL, CPE Lyon, INL, UMR 5270, 69130 Ecully, France

We report on the generation of photon pairs at 1550 nm from free-standing epitaxially grown self-assisted micrometre long GaAs nanowires. The efficiency of the spontaneous parametric down-conversion process has a rate of 320 GHz/Wm normalized to the transmission of the setup, the pump intensity, and the volume of the nanostructure. GaAs is a high index dielectric that can support electromagnetic Mie modes, therefore we model how shorter nanowires could improve the second-harmonic signal and we found that sub-micro long nanowires (600 nm length and 250 nm diameter) can support quality factors up to 15 at the pump wavelength (780 nm). We anticipate that the near field enhancement compared to micrometre long nanowires will boost the second-harmonic generation and, correspondingly, the biphoton rate efficiency.

4:45pm - 5:00pm
ID: 247 / TOM5 & TOM8 S01: 3
TOM 8 Non-linear and Quantum Optics

Cooperative spontaneous four-wave mixing in single-channel and dual-channel sequences of side-coupled ring resonators

Amideddin Mataji-Kojouri1, Massimo Borghi1, Federico A. Sabattoli1, Houssein El Dirani2, Laurene Youssef3, Camille Petit-Etienne3, Erwine Pargon3, John E. Sipe4, Marco Liscidini1, Corrado Sciancalepore2, Matteo Galli1, Daniele Bajoni5

1Dipartimento di Fisica, Università di Pavia, Via Agostino Bassi 6, 27100 Pavia, Italy; 2Univ. Grenoble Alpes, CEA-Leti, 38054 Grenoble cedex, France; 3Univ. Grenoble Alpes, CNRS, LTM, 38000 Grenoble, France; 4Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7, Canada; 5Dipartimento di Ingegneria Industriale e dell’Informazione, Università di Pavia, Via Adolfo Ferrata 5, 27100 Pavia, Italy

Cooperative photon pair generation by Spontaneous Four-Wave Mixing (SFWM) process in single-channel and dual-channel side-coupled ring resonator sequences is investigated. Our analysis shows that super-linear growth of generation rate with respect to the number of rings is possible even in presence of loss. Experimental evidence of super-SFWM is provided by comparing individual and collective generation rates obtained from a dual-channel ring resonator sequence. The results are in good agreement with theory and suggest that high photon pair generation rates can be achieved from integrated silicon ring resonator sequences without initiating nonlinear absorption processes.

5:00pm - 5:15pm
ID: 158 / TOM5 & TOM8 S01: 4
TOM 5 Resonant Nanophotonics

Towards harmonic generation enhancement on silicon

Laura Rodríguez1, Michael Scalora2, Crina Cojocaru1, Neset Akozbek3, Ramon Vilaseca1, Jose Trull1

1Universitat Politècnica de Catalunya, Physics Department, Rambla Sant Nebridi 22, 08222 Terrassa, Spain; 2Aviation and Missile Center, US Army CCDC, Redstone Arsenal, Huntsville, AL, United States; 3US Army Space & Missile Defense Command, Tech Center, Redstone Arsenal, AL 35898, United States

Nowadays, nanostructures are routinely fabricated and integrated in different photonic devices for a variety of purposes and applications. For instance, nonlinear silicon photonics is an area of interest due to its high compatibility with CMOS technology, offering structure sizes down to 10nm at low cost. When the nanoscale is reached, light-matter interactions can display new phenomena, conventional approximations may not always be applicable, and new strategies must be sought in order to study and understand light-matter interactions at the nanoscale. In this work, we report a comparative experimental and theoretical study of second and third harmonic generation from silicon with the aim of explaining the nonlinear optical properties of this material at the nanoscale. We measure second and third harmonic efficiencies as a function of angle of incidence, polarization and pump wavelength. We compare these measurements with numerical simulations based on a microscopic hydrodynamic model which accounts for different possible contributions to the nonlinear polarization. This way, we have the ability to explain properly the SH and TH signals arising from different silicon samples. Once we have this knowledge, we are able to design more complex structures, such as silicon nanowires, where higher conversion efficiencies can be achieved.

5:15pm - 5:30pm
ID: 272 / TOM5 & TOM8 S01: 5
TOM 5 Resonant Nanophotonics

Controlling the nonlinear excitation of perovskite nanocrystals by a chiral dielectric metasurface

Ilka Vincon1, Fedja J. Wendisch2, Daniele De Gregorio2, Stefanie D. Pritzl1, Quinten A. Akkerman1, Haoran Ren3,2, Leonardo de S. Menezes2,4, Stefan A. Maier5,2, Jochen Feldmann1

1Chair for Photonics and Optoelectronics, Nano-Institute Munich, LMU, Königinstraße 10, 80539 Munich, Germany; 2Chair in Hybrid Nanosystems, Nano-Institute Munich, LMU, Königinstraße 10, 80539 Munich, Germany; 3MQ Photonics Research Centre, Macquarie University, Macquarie Park, NSW 2109, Australia; 4Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife-PE, Brasil; 5School of Physics and Astronomy, Monash University, Clayton Victoria 3800, Australia

We demonstrate that pronounced chiral resonances of a dielectric metasurface can be applied to induce polarization effects in two-photon absorption processes of inorganic perovskite nanocrystals. In our hybrid system, a monolayer of cubic all-inorganic lead halide perovskite nanocrystals was deposited on a z-shaped Si-metasurface. The two-photon excited photoluminescence emission of the perovskite nanocrystals is enhanced by up to one order of magnitude in this configuration. In particular, the enhancement is controllable by the excitation wavelength and by its polarization. This demonstrated control of perovskite light emission can become highly relevant for sensing and display technologies.

5:45pm - 7:45pmAnnual General Assembly AGA (for EOS Members)
Location: Auditorium

All EOS members are welcomed to join this Annual General Assembly. At this meeting, the EOS reports its activities, budget, and plans for the future and the membership votes on important items. Join us to learn more about what we plan for the future of the European Optics community!