Results 41 to 50 of about 17,403 (267)

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

Advanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati, Prem Bahadur Karki, Jitender Kumar, Karishma Prasad, Mohamed A. Elekhtiar, Kai Huang, Bibek Tiwari, Suvechhya Lamichhane, Rupak Timalsina, Zane Hubble, Ayodimeji E. Aregbesola, John Watt, Sy‐Hwang Liou, Evgeny Y. Tsymbal, Jian Wang, Kapildeb Ambal, Abdelghani Laraoui   +16 more
wiley   +1 more source

Solution‐Processed Mn‐Doped 2d Perovskite Wavelength Shifters for Noble‐Liquid Photon Detection

Advanced Functional Materials, EarlyView.
Solution‐processed Mn2+‐doped PEA2PbBr4 two‐dimensional perovskite films are demonstrated as large‐area wavelength shifters for noble‐liquid photon detectors. Mn2+ incorporation introduces a broad emission band at ∼620 nm with a large Stokes shift, suppressing self‐absorption and matching SiPM sensitivity.
Elisabetta Colantoni, Laura Basiricò, Andrea Ciavatti, Nicolò Tosi, Valentina Cicero, Massimo Loriggiola, Beatrice Fraboni   +6 more
wiley   +1 more source

Tunable optical lattices in the near-field of a few-mode nanophotonic waveguide [PDF]

EPJ Web of Conferences, 2019
Due to the action of the scattering force, particles that are optically trapped at the surface of a waveguide are propelled in the direction of the light propagation.
Pin Christophe, Jager Jean-Baptiste, Tardif Manon, Picard Emmanuel, Hadji Emmanuel, de Fornel Frédérique, Cluzel Benoît   +6 more
doaj   +1 more source

FDTD Investigation of Efficient and Robust Integration Between Si₃N₄ and Ge-Rich GeSi for Waveguide-Integrated Electro-Absorption Optical Modulators

IEEE Access, 2023
Si3N4 photonic integrated circuits have gain significant and rapid interest in different photonic applications thanks to its superior passive performance.
Natdanai Khongpetch, Worawat Traiwattanapong, Surasak Chiangga, Pichet Limsuwan, Papichaya Chaisakul   +4 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

A 1064 nm Deep-Etched Wide-Ridge Waveguide Slab-Coupled Photonic Crystal Semiconductor Laser

Photonics
Semiconductor lasers are key devices in optical communication, optical storage and other fields. Achieving single-mode, high-power and high-beam-quality output is an important research goal in laser technology. Conventional slab-coupled optical waveguide
Jianxin Zhang, Gaoben Shi, Xiaoyun Liu, Haizhu Sun, Xinmin Fan, Pingping Wang, Yan Wang, Fuyong Qin, Zaifa Du   +8 more
doaj   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Monolithic Integration of InP Wire and $\mbox{SiO}_x$ Waveguides on Si Platform

IEEE Photonics Journal, 2015
We report a low-loss InP wire waveguide monolithically integrated with an SiOx waveguide on an Si platform. By means of directly bonding InP to SiO 2, we realized a submicrometer-scale InP wire waveguide with high optical confinement.
H. Nishi, K. Takeda, T. Tsuchizawa, T. Fujii, S. Matsuo, K. Yamada, T. Yamamoto   +6 more
doaj   +1 more source

Technology and performances of silicon oxynitride waveguides for optomechanical sensors fabricated by plasma-enhanced chemical vapour deposition [PDF]

Journal of the European Optical Society-Rapid Publications, 2007
The technology and performance of micromachined channel waveguides, based on plasma-enhanced chemical vapour deposition (PECVD) of silicon oxynitride thin films, are presented.
Sabac A., Gorecki C., Jozwik M., Nieradko L., Meunier C., Gut K.   +5 more
doaj   +1 more source