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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Andrei Kiselev, Karim Achouri, Olivier J. F. Martin
Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland
We investigate optical forces in the time domain, instead of using the time-average Maxwell stress tensor. We demonstrate first that a plane wave causes on a physical object an optical pressure that fluctuates at optical frequency in the time domain. The analytical formula for the optical force dynamics is presented for this case. The case for two-wave illumination with slightly different frequencies is considered next. It is shown that in this case the optical force acquires a component at the beating frequency. The analytical expression for the transient force is deduced and its relation with average force explained in detail.
1Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy; 2INRS Énergie, Matériaux et Télécommunications, 1650 Blvd Lionel Boulet, J3X 1S2 Varennes, QC, Canada
The investigation of strong light-matter interactions in nanohybrid architectures is promising for both fundamental studies and novel technological applications. In particular, the properties of low-dimensional semiconducting materials can be properly tailored via their integration with optical nanocavities, with strong implications on the final device performance. Here we present two main experiments, in which we exploit ad-hoc designed photonic nanoarchitectures to reshape, respectively, the exciton and phonon energy landscapes of quantum dots. Our results are stimulating towards further explorations of the physics of strongly coupled hybrid systems which present potential interest in several fields, spanning from photocatalysis to optoelectronic and quantum technologies.
Numerical investigation of far-field circular dichroism and local chiral response of pseudo-chiral meta-surface with FEM
Jayeeta Amboli1, Guillaume Demesy1, Bruno Galas2, Nicolas Bonod1
1Institute Fresnel, Aix-Marseille University, France; 2Institut des NanoSciences de Paris, Sorbonne Universités, UPMC Univ Paris 06,France
Circular dichroism spectroscopy is a sensitive and widely applied technique to detect chiral molecules. Recent studies have shown high prospects for plasmonic metasurfaces of pseudo-chiral nano-resonators in enhancing chiral sensitivity. Here we study the far-field circular dichroism for gold U-shaped metasurfaces by calculating Mueller matrix elements with the Finite element method and investigate its response in light of the near field electric energy and optical chiral density.