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 and polymers, syntheses, characterization and devices
TOM 7 - Thermal radiation and energy management
TOM 8 - Nonlinear and Quantum Optics
TOM 9 - Optics at Nanoscale (ONS)
TOM 10 - Optical Microsystems (OMS)
TOM 11 - Waves in Complex Photonic Media
TOM 12 - Optofluidics
TOM 13 - Ultrafast Optical Technologies and Applications
TOM 14 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session organised by SIOF
Grand Challenges of Photonics Session

More information on the Topical Meetings

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Session Overview
TOM5 S03: Resonant Nanophotonics: Topological photonics, time varying metamaterials, theoretical photonics
Thursday, 16/Sept/2021:
11:15 - 12:45

Session Chair: Nicolas Bonod, CNRS, France
Location: Aula 7

1st Floor

11:15 - 11:45
ID: 262 / TOM5 S03: 1
TOM 5 Resonant Nanophotonics

Time-varying metamaterials: dragging and amplifying light.

Paloma Arroyo Huidobro1, Emanuele Galiffi2, Mario Silveirinha1, John Pendry2

1Instituto de Telecomunicacoes - IST, University of Lisbon, Portugal; 2Imperial College London, UK

New opportunities enabled by time-varying metamaterials will be discussed. In particular, periodic temporal modulations of a metasurface allow to excite surface waves from the far field without any breaking of spatial invariance, while spatio-temporal metamaterials enable giant nonreciprocal effects even in the effective medium limit as well as a regime where a new mechanism for gain emerges. While in the long wavelength limit we find a tunable form of Fresnel drag effect of light in moving media, gain enables nonreciprocal broadband amplification that could be realised in graphene.

11:45 - 12:00
ID: 136 / TOM5 S03: 2
TOM 5 Resonant Nanophotonics

On the experimental realization of a 1D topological chain and PT-symmetry with coupled organic microcavities

Karla Roszeitis1, Markas Sudzius1, Rebekka Koch2, Jan Carl Budich3, Karl Leo1

1Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universität Dresden, 01062 Dresden, Germany; 2Institute for Theoretical Physics, University of Amsterdam, PO Box 94485, 1090 GL Amsterdam, The Netherlands; 3Institute for Theoretical Physics, Technische Universität Dresden, 01062 Dresden, Germany

We present a combined theoretical and experimental approach towards a parity-time symmetric system with coupled organic microcavities. We focus on a tight binding model for calculating 1D topological chains and determining constraints for topological non-trivial behavior. Experimentally, we have realized a model system with balanced gain-loss, which we drive over a broad range of optical pump powers from linear to coherent emission regimes. Analysis of exposure characteristics has shown discrepancies in input-output dependencies in the measurements, where gain and loss are spatially swapped, which is specific to parity-time symmetric systems.

12:00 - 12:15
ID: 334 / TOM5 S03: 3
TOM 5 Resonant Nanophotonics

Gaussian regularization for resonant states

Brian Stout1, Ross McPhedran2, Remi Colom3, Niocolas Bonod1

1Aix-Marseille Université, Institut Fresnel, France; 2IPOS, School of Physics, University of Sydney, 2006, Australia; 3Zuse Institute Berlin, Takustra{\ss}e 7, 14195 Berlin, Germany

We present the merits of a Gaussian regularization of the Resonant States (RSs) of open systems which provides analytical results for the inner product integrals of the RSs. After including the appropriate non-resonant contributions, analytic calculations for spherical scatterers with this technique are shown to completely retrieve the results of exact Mie theory.

12:15 - 12:30
ID: 417 / TOM5 S03: 4
TOM 5 Resonant Nanophotonics

Time-domain formulation of electromagnetic scattering based on a polarization mode expansion and the principle of least action

Carlo Forestiere, Giovanni Miano

University of Naples "Federico II", Italy

A fresh approach to the full-wave analysis of time-evolution of the polarization induced in the electromagnetic scattering from dispersive particles is presented. It is grounded on the Hopfield model for the polarization field, the expansion of the polarization field in terms of static longitudinal and transverse modes of the particle, the expansion of the radiation field in transverse wave modes of free space, and the principle of least action. The characteristics of the temporal evolution of the mode amplitudes are found as the particle size varies, including the impulse response.