Results 81 to 90 of about 2,371,758 (319)

Proving Optical Anisotropy and Polarization Effects in β‐Ga2O3$\left(\text{Ga}\right)_{2} \left(\text{O}\right)_{3}$ Nanomembranes via X‐Ray Excited Optical Luminescence

Advanced Photonics Research, EarlyView.
In this study, the pronounced anisotropy in the optical properties of β‐Ga2O3 nanomembranes has been analized under a synchrotron nanoprobe. We have investigated the site‐specific contributions of distint Ga ions to the emission bands by combining polarization‐dependent X‐ray absorption near‐edge structure and X‐ray excited luminescence.
Paula Pérez‐Peinado, Jaime Dolado, Pedro L. Alcázar Ruano, Daniel Carrasco, Ruth Martínez‐Casado, Valentina Bonino, Gema Martínez‐Criado, Jani Jesenovec, John S. McCloy, Francisco Domínguez‐Adame, Jorge Quereda, Emilio Nogales, Bianchi Méndez   +12 more
wiley   +1 more source

Optical Chaos Generation and Applications

Advanced Photonics Research, EarlyView.
This review comprehensively examines optical chaos generation via feedback, injection, and optoelectronic methods, emphasizing bandwidth enhancement and time‐delay suppression. Applications include chaos‐synchronized secure communication, physical random number generation, chaotic lidar for cm‐level detection, distributed fiber sensing, and terahertz ...
Wenhui Chen, Xiaoxin Mao, Junli Wang, Rong Zhang, Longsheng Wang, Zhiwei Jia, Pu Li, Anbang Wang, Yuncai Wang   +8 more
wiley   +1 more source

Basic functions of telecommunication channel elements for successful information transmission [PDF]

Vojnotehnicki glasnik, 2011
The challenge in the field of multimedia telecommunications is an attempt to integrate texts, sound, images and videos coherently and consistently and to ensure simplicity and interactivity of operation. In order to make the proposed multimedia applications acceptable to end-users, the quality of transmission through the network and message ...
openaire   +3 more sources

Switchable Terahertz Beam Steering with Near‐Perfect Ordinary Transmission

Advanced Photonics Research, EarlyView.
This study introduces a reconfigurable metasurface that enables switchable terahertz beam steering upon actuation by a global temperature change. At room temperature, it achieves a true “OFF” state with nearly 100% transmission, behaving as if the metasurface is not present, thereby not distorting incoming light.
Zhixiang Huang, Jie Ji, Ke Ma, Eric Herrmann, Riad Yahiaoui, S M Jahadun Nobi, Fei Ding, Peter Uhd Jepsen, Thomas A. Searles, Binbin Zhou, Zizwe Chase, Xi Wang   +11 more
wiley   +1 more source

Methods for assessing the impact of bandwidth of control channels on the quality of telecommunications networks in the transmission of data packets of different types

, 2022
Mohialdeen Mustafa Mohammed, Zaika Viktor, Yurii Khlaponin, Berkman Lyubov, Polonskyi Konstiantyn, Oleksandr Turovsky   +5 more
openalex   +2 more sources

Future of Telecommunications

Nature, 2023
W. Luther
semanticscholar   +1 more source

Non‐Hermitian Topological Lattice Photonics: An Analytic Perspective

Advanced Photonics Research, EarlyView.
This review establishes exact analytical solutions for non‐Hermitian Hatano–Nelson, Su–Schrieffer–Heeger, and generalized Rice–Mele models. We demonstrate non‐Hermitian skin effects via point‐gap topology, hybrid skin‐topological edge states in 2D lattices, and spin‐polarized boundary modes governed by dual bulk‐boundary correspondence.
Shihua Chen, Abdul Basit, Lingfang Li, Chong Hou, Yang Ruan, Yating Wei, Zhenhua Ni   +6 more
wiley   +1 more source

ANALYSIS OF THE CURRENT STATE OF HIDDEN DATA TRANSMISSION IN THE PUBLIC INFORMATION TELECOMMUNICATIONS NETWORK

, 2022
Valerii Chystov, K. S. Vasiuta
openalex   +2 more sources

All‐Dielectric Metasurface‐Based Gap Waveguides

Advanced Photonics Research, EarlyView.
Dielectric metasurface‐based waveguides (metawavegides) offer several advantages over conventional waveguides, making them ideal for integrated photonics. A design of a metawaveguide composed of a pair of dielectric metasurfaces is proposed, where each metasurface behaves as a wall of either a perfect electric conductor or a perfect magnetic conductor,
Vladimir R. Tuz, Vyacheslav V. Khardikov, Izzatjon Allayarov, Antonio Calà Lesina, Andrey B. Evlyukhin   +4 more
wiley   +1 more source

Ultrafast Radiative Recombination Engineering in InGaN/GaN Quantum Wells through Temperature, Alloy Fraction and Layer's Width Tuning for Photonics

Advanced Theory and Simulations, EarlyView.
A side‐view schematic illustrating intra‐ and inter‐band optical recombination processes in quantum wells, highlighting applications that depend on carrier dynamics and recombination lifetimes, such as lasers, photodetectors, and solar cells. Abstract Radiative lifetime (RT) on the picosecond to femtosecond scale plays a key role in enabling ultrafast ...
Redouane En‐nadir
wiley   +1 more source