Results 61 to 70 of about 11,788 (237)

Study of the Angular Spectrum of a Bianisotropic Refractive Metasurface at a Dielectric Interface

, 2018
We present an initial study of the angular spectrum of a bianisotropic refractive metasurface at an interface between two dielectric media. In this study, we report on the existence of three distinct angular regions: a)~a rotated transmission cone, b)~a ...
Achouri, Karim, Caloz, Christophe, Lavigne, Guillaume   +2 more
core   +1 more source

Nonlinear Wavefront Control with All-Dielectric Metasurfaces

Nano Letters, 2018
Metasurfaces, two-dimensional lattices of nanoscale resonators, offer unique opportunities for functional flat optics and allow the control of the transmission, reflection, and polarization of a wavefront of light. Recently, all-dielectric metasurfaces reached remarkable efficiencies, often matching or out-performing conventional optical elements.
Lei Wang, Sergey Kruk, Kirill Koshelev, Ivan Kravchenko, Barry Luther-Davies, Yuri Kivshar   +5 more
openaire   +4 more sources

All‐Dielectric Metasurface‐Based Gap Waveguides

Advanced Photonics Research
The development of modern optical communication systems requires specific waveguides, given that the widely used fiber‐optic components are poorly integrated with planar technologies.
Vladimir R. Tuz, Vyacheslav V. Khardikov, Izzatjon Allayarov, Antonio Calà Lesina, Andrey B. Evlyukhin   +4 more
doaj   +1 more source

GaAs Linear Polarizer with a High Extinction Ratio for Extended Short-Wave Infrared Detection

Photonics, 2023
Metasurfaces have shown an unprecedented ability to modulate electromagnetic waves at subwavelength scales, especially polarized optical metasurfaces, applied for imaging, navigation and detection.
Leidong Shi, Lidan Lu, Guang Chen, Yulin Feng, Yanlin He, Guanghui Ren, Jianzhen Ou, Lianqing Zhu   +7 more
doaj   +1 more source

Multiwavelength Achromatic Metasurfaces by Dispersive Phase Compensation

, 2015
The replacement of bulk refractive optical elements with diffractive planar components enables the miniaturization of optical systems. However, diffractive optics suffers from large chromatic aberrations due to the dispersion of the phase accumulated by ...
Aieta, Francesco, Capasso, Federico, Genevet, Patrice, Kats, Mikhail A.   +3 more
core   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

All-dielectric resonant metasurfaces with a strong toroidal response

, 2018
We demonstrate how to create all-dielectric metasurfaces with a strong toroidal response by arranging two types of nanodisks into asymmetric quadrumer clusters.
Khardikov, Vyacheslav V., Kivshar, Yuri S., Tuz, Vladimir R.   +2 more
core   +4 more sources

Imaging of Biphoton States: Fundamentals and Applications

Advanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Active tuning of high-Q dielectric metasurfaces

, 2017
We demonstrate the active tuning of all-dielectric metasurfaces exhibiting high-quality factor (high-Q) resonances. The active control is provided by embedding the asymmetric silicon meta-atoms with liquid crystals, which allows the relative index of ...
Brener, Igal, Campione, Salvatore, Hopkins, Ben, Komar, Andrei, Liu, Sheng, Miroshnichenko, Andrey E., Neshev, Dragomir N., Nogan, John, Parry, Matthew, Sinclair, Michael B.   +9 more
core   +1 more source