Results 81 to 90 of about 438,669 (284)

Polarization features of optically pumped CdS nanowire lasers

, 2014
High quality CdS nanowires suspended in air were optically pumped both below and above the lasing threshold. The polarization of the pump laser was varied while emission out of the end facet of the nanowire was monitored in a 'head-on' measurement ...
Buschlinger, Robert, Geburt, Sebastian, Kriesch, Arian, Peschel, Ulf, Ploss, Daniel, Ronning, Carsten, Röder, Robert   +6 more
core   +1 more source

AlGaN-Delta-GaN Quantum Well for DUV LEDs

Photonics, 2020
AlGaN-delta-GaN quantum well (QW) structures have been demonstrated to be good candidates for the realization of high-efficiency deep-ultraviolet (DUV) light-emitting diodes (LEDs). However, such heterostructures are still not fully understood.
Cheng Liu, Bryan Melanson, Jing Zhang
doaj   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Optical integration of a real-valued function by measurement of a Stokes Parameter

, 2014
We experimentally implement an optical algorithm for integration of a real-valued bivariate func- tion. A user-defined function is encoded in the position-dependent phase of one of the polarization components of an optical beam.
Lemos, Gabriela Barreto, Ribeiro, Paulo Henrique Souto, Walborn, Stephen   +2 more
core   +1 more source

All-optical polarization-filtered subwavelength imaging in microwave regime via atom-based polarization holography

Communications Physics
Polarization imaging is essential to reveal rich information of the vectorial nature of microwaves. However, selective imaging of specific polarization components with subwavelength resolution remains challenging. Here, we propose atom-based polarization
Ziyao Lyu, Tao Dong, Yijie Du, Hong Chen, Changshun Wang   +4 more
doaj   +1 more source

Polarization Beam Splitter Based on Si₃N₄/SiO₂ Horizontal Slot Waveguides for On-Chip High-Power Applications

Sensors, 2020
In this paper, we propose an Si3N4/SiO2 horizontal-slot-waveguide-based polarization beam splitter (PBS) with low nonlinearity for on-chip high-power systems.
Yuxi Fang, Changjing Bao, Zhonghan Wang, Yange Liu, Lin Zhang, Hao Huang, Yongxiong Ren, Zhongqi Pan, Yang Yue   +8 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Generation of Hidden Optical-Polarization: Squeezing and Non-Classicality

, 2011
A monochromatic double-mode coherent light endowed with orthogonally polarized photons propagating collinearly is studied in Degenerate Parametric Amplification.
Agarwal, Agarwal, Akhilesh Kumar, Bjork, Bjork, Born, Bowen, Brosseau, Collett, Collett, Giovannetti, Glauber, Glauber, Grangier, Gyaneshwar K. Gupta, Klimov, Klimov, Klyshko, Korolkova, Korolkova, Lehner, Mandel, Mehta, Mehta, Peres, Prakash, Prakash, Prakash, Ravi S. Singh, Sehat, Silberhorn, Soderholm, Stokes, Tsegaye, Usachev, Walls, Wolf   +36 more
core   +1 more source

Optical polarization manipulations with anisotropic nanostructures

PhotoniX
Over the past few decades, metasurfaces have revolutionized conventional bulky optics by providing an effective approach to manipulate optical waves at the subwavelength scale.
Zhancheng Li, Wenwei Liu, Yuebian Zhang, Hua Cheng, Shuang Zhang, Shuqi Chen   +5 more
doaj   +1 more source

Features of focusing of optical vortices using subwavelength elements with varying height of odd and even relief zones

Компьютерная оптика
In this work, the propagation of optical vortices with circular, radial, and azimuthal polarization through subwavelength ring gratings with standard and GRIN substrates using a finite difference time domain method is numerically simulated.
D.A. Savelyev
doaj   +1 more source