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
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Please note that all times are shown in the time zone of the conference. The current conference time is: 11th Aug 2022, 09:48:17pm WEST
Quantum- and nanooptics with tunable microcavities
Karlsruhe Institute of Technology, Germany
Optical microcavities are a powerful tool to enhance light-matter interactions. This enables applications ranging from ultra-sensitive spectroscopy and sensing to quantum information. To achieve large cavity enhancement on a flexible platform, we have developed microscopic Fabry-Perot cavities based on laser-machined optical fibers.
In the context of sensing, we use microcavities for imaging and spectroscopy applications, as well as for sensing of dynamic properties of individual nanosystems. We have developed scanning cavity microscopy as a versatile method for spatially and spectrally resolved maps of various optical properties of a sample with ultra-high sensitivity. Simultaneous enhancement of absorptive, dispersive, and scattering signals promises intriguing potential for optical studies of nanomaterials, molecules and biological nanosystems.
For quantum information applications, we employ such cavities to realize efficient readout of individual spin-bearing quantum emitters by means of Purcell enhancement of fluorescence emission. We study solid state quantum emitters such as NV centers in diamond and rare earth ions, with the goal to realize a quantum repeater for long-distance quantum communication, and optically addressable multi-qubit registers as quantum computing nodes.
Vashist Gangigude Ramesh, Kevin Peters, Said Rodriguez
Center for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
The arcsine laws are an example of emergent statistical structure in nature manifesting in a variety of unrelated physical systems. However, their validity in optical systems has not yet been studied. We investigate the time-integrated intensity in a driven-dissipative linear optical cavity and observe, experimentally and via numerical simulations, that all three arcsine laws are obeyed by this quantity.
9:15am - 9:30am ID: 112 / TOM5 & TOM8 S02: 3 TOM 8 Non-linear and Quantum Optics
Asymmetric comb waveguide for strong interactions between atoms and light
Nikos Fayard1, Adrien Bouscal2, Jeremy Berroir2, Alban Urvoy2, Tridib Ray2, Sukanya Mahapatra3, Malik Kemiche3, Juan-Ariel Levenson3, Jean-Jacques Greffet1, Kamel Bencheikh3, Julien Laurat2, Christophe Sauvan1
1Université Paris-Saclay, Institut d’Optique Graduate School, CNRS, Laboratoire Charles Fabry, 91127 Palaiseau, France; 2Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, 4 place Jussieu, 75005 Paris, France; 3Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay, 91120 Palaiseau, France
We propose a new type of periodic dielectric waveguide that provides strong interactions between atoms and guided photons. We design an asymmetric comb waveguide that supports a slow mode with an unusual quartic dispersion around a zero-group-velocity point and an electric field that extends far into the air cladding for an optimal interaction with atoms. We calculate the potential of a two-color trap made by using blue-detuned and red-detuned guided modes. We show that cold Rubidium atoms can be trapped as close as 100 nm from the structure in a 1.3-mK-deep potential well. Finally, we calculate that, for atoms trapped at this position, the emission into guided photons is largely favored. The radiative decay rate into the guided slow mode is 10 times larger than the free-space decay rate and the beta factor is as high as 0.88
Engineering high Q/V photonic modes in correlated disordered systems
Nicoletta Granchi1, Richard Spalding2, Kris Stokkereit2, Matteo Lodde3, Andrea Fiore3, Riccardo Sapienza4, Francesca Intonti1, Marian Florescu2, Massimo Gurioli1
1University of Florence, Italy; 2University of Surrey, UK; 3Eindhoven University of Technology, The Netherlands; 4Imperial College London, UK
Hyperuniform disordered (HuD) photonic materials have recently been shown to display several localized states with relatively high Q factors arising at the Photonic Band Gap edges. However, their spatial position is not predictable a priori. Here we experimentally benchmark through near-field spectroscopy, capable of sub-wavelength resolution in the near-IR range, the engineering of high Q/V resonant modes in a defect inside a HuD luminescent pattern. These deterministic modes, coexisting with Anderson-localized modes, have never been experimentally realized so far and are a valid candidate for implementations in optoelectronic devices due to the spatial isotropy of the HuD environment upon which they are built.
9:45am - 10:00am ID: 173 / TOM5 & TOM8 S02: 5 TOM 8 Non-linear and Quantum Optics
Exceptional Precision of a Nonlinear Optical Sensor at a Square-Root Singularity
Kevin Peters, Said Rodriguez
Center for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
We demonstrate a nonlinear optical resonator with exceptional sensitivity in noisy environments. Our sensor is a hysteretic resonator, which displays a signal with a square-root singularity where the sensitivity, precision and information content are enhanced.