Results 71 to 80 of about 2,390,699 (275)

Output characteristics of an intracavity-pumped dual-wavelength narrow-linewidth laser with reabsorption losses [PDF]

AIP Advances
Quasi-three-level dual-wavelength narrow-linewidth lasers are vital for precision applications, but reabsorption-induced energy transfer inefficiencies hinder performance, creating a critical optimization gap.
Yu Liu, Hanyou Su, Kaihui Gu, Miao Yu, Zhenxi Bao, Yunuo Han   +5 more
doaj   +1 more source

On‐Chip Photonic Neural Network Architectures

Advanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong, Berkay Neseli, Seungyeon Cho, Seungsoo Lee, Yeonjun Kim, Seungyoon Choi, Hyo‐Hoon Park, Hamza Kurt   +7 more
wiley   +1 more source

Retrieval of Gas Temperature and Pressure Based on Rayleigh–Brillouin Spectrum

IEEE Access, 2020
Optical detection methods such as Rayleigh-Brillouin scattering spectrum can be used for physical parameter measurement in solids, liquids, and gas. In this paper, a new method based on spectral characteristics is proposed to realize temperature and ...
Peng Zhang, Jiaqi Xu, Ruizhe Zhang, Qian Sun, Hang Wu, Yangrui Xu, Bo Zhou, Kun Liang   +7 more
doaj   +1 more source

Large‐Area Flat Optics Color Routing in Tilted Arrays of 2D Semiconductor Nanostripes

Advanced Optical Materials, EarlyView.
We develop a scalable flat optics platform exploiting self‐organised ion‐beam sputtering and maskless glancing‐angle deposition to fabricate centimetre‐scale arrays of tilted MoS2 nanostripes. The engineered geometry activates Rayleigh anomalies, guided modes, and Mie resonances, enabling highly directional color routing and enhanced light harvesting ...
Simone Di Marco, Daniele Ceneda, Matteo Barelli, Matteo Gardella, Rajesh Chennuboina, Maria C. Giordano, Marco Centini, Francesco Buatier de Mongeot   +7 more
wiley   +1 more source

Noise characteristics of semiconductor lasers with narrow linewidth

Heliyon
Narrow-linewidth semiconductor lasers are highly valued in scientific research and industrial applications owing to their high coherence and low phase noise characteristics, particularly in high-performance optical communications, sensing, and microwave ...
Hua Wang, Yuxin Lei, Qiang Cui, Siqi Li, Xin Song, Yongyi Chen, Lei Liang, Peng Jia, Cheng Qiu, Yue Song, Yubing Wang, Yiran Hu, Li Qin, Lijun Wang   +13 more
doaj   +1 more source

Electrodynamic theory of ferromagnetic resonance and its applications in precise measurements of ferromagnetic linewidth, permeability tensor and saturation magnetization

AIP Advances, 2020
This review paper describes the state of the art in measurements of ferromagnetic linewidth, permeability tensor and saturation magnetization employing electrodynamic theory of ferromagnetic resonance.
Jerzy Krupka, Adam Pacewicz, Bartłomiej Salski, Paweł Kopyt   +3 more
doaj   +1 more source

Electrically Reconfigurable Optical Initialization of Spin Valley Polarization in Monolayer WS2 Enabled by Switchable Dual‐Mode Liquid Crystal Lasers

Advanced Optical Materials, EarlyView.
This work presents an electrically controllable approach to spin–valley polarization in monolayer WS2 by integrating it with a dual‐mode liquid crystal laser. Applying an external field triggers phase transitions that switch the laser emission between helicity‐defined band‐edge lasing and unpolarized random lasing.
Yu‐Chuan Tsao, Ya‐Ping Hsieh, Yang‐Fang Chen, Hui‐Yu Chen   +3 more
wiley   +1 more source

Recent Advances in Tunable External Cavity Diode Lasers

Applied Sciences
A narrow linewidth tunable laser source is a critical component in various fields, including laser radar, quantum information, coherent communication, and precise measurement. Tunable external cavity diode lasers (ECDLs) demonstrate excellent performance,
Yan Wang, Yue Song
doaj   +1 more source

Wavelength‐Multiplexed 2D Beam Steering via a Passive Diffractive Network

Advanced Optical Materials, EarlyView.
Illustration of a wavelength‐multiplexed diffractive beam steering system, which is composed of K cascaded diffractive layers, each containing phase‐modulating elements that are jointly optimized using deep learning–based optimization. When illuminated with a set of wavelengths {λ1,λ2,…,λNw}$\{ {{{\lambda }_1},{{\lambda }_2},\ldots ,{{\lambda }_{{{N}_w}
Che‐Yung Shen, Yuhang Li, Çağatay Işıl, Tianyi Gan, Mona Jarrahi, Aydogan Ozcan   +5 more
wiley   +1 more source

Incoherent Measurement of a Sub-10 kHz Optical Linewidth

Physical Review Letters
6 pages, 3 ...
Félix Montjovet-Basset, Jayash Panigrahi, Diana Serrano, Alban Ferrier, Emmanuel Flurin, Patrice Bertet, Alexey Tiranov, Philippe Goldner   +7 more
openaire   +4 more sources