Results 11 to 20 of about 44,104 (50)

All-Dielectric Metasurface Based on Complementary Split-Ring Resonators for Refractive Index Sensing

open access: yesPhotonics, 2022
Thanks to their lower losses and sharper resonances compared to their metallic counterparts, all-dielectric metasurfaces are attracting a quickly growing research interest.
Mohsen Samadi   +8 more
doaj   +1 more source

Designer Bloch plasmon polariton dispersion in grating-coupled hyperbolic metamaterials

open access: yesAPL Photonics, 2020
Hyperbolic metamaterials (HMMs) are anisotropic optical materials supporting highly confined propagating electromagnetic modes. However, it is challenging to tailor and excite these modes at optical frequencies by prism coupling because of the ...
Nicolò Maccaferri   +5 more
doaj   +1 more source

Design, Fabrication and Characterization of an Adaptive Retroreflector (AR)

open access: yesPhotonics, 2022
Recent work at the U.S. Naval Research Laboratory studied atmospheric turbulence on dynamic links with the goal of developing an optical anemometer and turbulence characterization system for unmanned aerial vehicle (UAV) applications.
Freddie Santiago   +4 more
doaj   +1 more source

Quantum Magneto-Optics in Graphene

open access: yesPhotonics, 2015
The optical conductivity of graphene in quantizing magnetic fields is studied. Both dynamical conductivities, longitudinal and Hall’s, are analytically evaluated. The conductivity peaks are explained in terms of electron transitions.
Leonid Falkovsky
doaj   +1 more source

Distance Measurement of a Frequency-Shifted Sub-Terahertz Wave Source

open access: yesPhotonics, 2022
In this paper, we report the development of a frequency-shifted (FS) terahertz (THz) wave source for the non-destructive inspection of buildings. Currently, terahertz-time domain spectroscopy (THz-TDS) is the mainstream method for non-destructive ...
Minoru Honjo   +3 more
doaj   +1 more source

Semi-Transparent Energy-Harvesting Solar Concentrator Windows Employing Infrared Transmission-Enhanced Glass and Large-Area Microstructured Diffractive Elements

open access: yesPhotonics, 2018
We report on the study of energy-harvesting performance in medium-size (400 cm2) glass-based semitransparent solar concentrators employing edge-mounted photovoltaic modules.
Mikhail Vasiliev   +4 more
doaj   +1 more source

Amplitude Zone Plate in Adaptive Optics: Proposal of the Principle

open access: yesPhotonics, 2022
One of the main elements in hardware-based adaptive optics systems is a deformable mirror. There is quite a large number of such mirrors based on different principles and exhibiting varying performance.
Vasily Matkivsky   +3 more
doaj   +1 more source

Robust nano-fabrication of an integrated platform for spin control in a tunable microcavity

open access: yesAPL Photonics, 2017
Coupling nitrogen-vacancy (NV) centers in diamonds to optical cavities is a promising way to enhance the efficiency of diamond-based quantum networks. An essential aspect of the full toolbox required for the operation of these networks is the ability to ...
Stefan Bogdanović   +6 more
doaj   +1 more source

Self-Supervised Deep Learning for Improved Image-Based Wave-Front Sensing

open access: yesPhotonics, 2022
Phase retrieval from supervised learning neural networks is restricted due to the problem of obtaining labels. To address this situation, in the present paper, we propose a phase retrieval model of self-supervised physical deep learning combined with a ...
Yangjie Xu   +5 more
doaj   +1 more source

Modeling of all-optical even and odd parity generator circuits using metal-insulator-metal plasmonic waveguides

open access: yesPhotonic Sensors, 2017
Plasmonic metal-insulator-metal (MIM) waveguides sustain excellent property of confining the surface plasmons up to a deep subwavelength scale. In this paper, linear and S-shaped MIM waveguides are cascaded together to design the model of Mach-Zehnder ...
Lokendra Singh, Amna Bedi, Santosh Kumar
doaj   +1 more source

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