Results 81 to 90 of about 35,818 (242)

New High‐Tc Charge‐Transfer Multiferroicity in the Quasi‐2D Antiferromagnet CrSbS3

Advanced Science, EarlyView.
ABSTRACT Low‐dimensional magnets, particularly 2D systems, offer a rich platform for realizing unconventional multiferroic mechanisms, especially when multiple polarization channels coexist. In the quasi‐2D antiferromagnet CrSbS3, which crystallizes in the centrosymmetric orthorhombic space group Pnma and orders magnetically at TN ≈ 90 K, two ...
Hung‐Cheng Wu, Yu‐Hsin Liao, Chih‐Chung Tsai, Pei‐Ying Yang, Yu‐Hao Chang, Yu‐Hui Liang, D. Chandrasekhar Kakarla, Ajay Tiwari, C. Dhanasekhar, Chin‐Wei Wang, Daisuke Okuyama, Chia‐Nung Kuo, Chin‐Shan Lue, Tzu‐Hsuan Weng, Kung‐Hsuan Lin, Jau‐Wern Chiou, Chi‐Hung Lee, Hung‐Duen Yang   +17 more
wiley   +1 more source

Titanium-doped sapphire laser research and design study [PDF]

Three main topics were considered in this study: the fundamental laser parameters of titanium-doped sapphire, characterization of commercially grown material, and design of a tunable, narrow-linewidth laser.
Moulton, Peter F.
core   +1 more source

Why the laser linewidth is so narrow: A modern perspective

, 2015
We review and interpret a modern approach to laser theory, steady-state ab initio laser theory (SALT), which treats lasing and amplification in a unified manner as a non-unitary scattering problem described by a non-linear scattering matrix.
Cerjan, Alexander, Stone, A. Douglas
core   +1 more source

High‐Order Nonlinear Photonic Crystal with Ordered Structures for Giant Enhancement of Frequency Tripling

Advanced Science, EarlyView.
A meta‐YAG crystal with artificially order/disorder structures was fabricated to realize the efficient third‐harmonic generation at 343 nm with a conversion efficiency of 4.5×10−3, surpassing six orders of magnitude compared to bulk YAG crystal. Moreover, a wide spectral tunability from 331 to 356 nm was also achieved in the meta‐YAG, indicating its ...
Xiaotian Guo, Qiaoling Han, Fei Liang, Bin Zhang, Dazhi Lu, Haohai Yu, Huaijin Zhang   +6 more
wiley   +1 more source

Brillouin Backscattering Light Properties of Chaotic Laser Injecting Into an Optical Fiber

IEEE Photonics Journal, 2017
Laser diode-based optical chaos is attractive for the fundamental physics as well as practical tasks in such as secure communications, random number generation, and fiber sensing.
Mingjiang Zhang, Hui Liu, Jianzhong Zhang, Yi Liu, Ruixia Liu   +4 more
doaj   +1 more source

All-optical wavelength-tunable narrow-linewidth fiber laser

, 2017
Parameter regulations of narrow-linewidth fiber lasers in frequency domain has drawn considerable interests for widespread applications in the light quantum computing, precise coherent detection, and generation of micro-waves. All-optical methods provide
Cao, Yulong, Gao, Lei, Huang, Shihong, Lan, Tianyi, Li, Yujia, Zhu, Tao   +5 more
core   +1 more source

Charge‐Acoustic Phonon Coupling Determined Carrier Transport Properties in FAxMA1−xPbBr3 Perovskite Single Crystals

Advanced Science, EarlyView.
This study investigates acoustic phonon‑carrier coupling in FAxMA1−xPbBr3 single crystals using time‑domain Brillouin scattering. The results show that increasing the FA content in FAxMA1−xPbBr3 single crystal reduces both the elastic constant and the intrinsic carrier mobility governed by the acoustic phonon‑carrier coupling.
Wei Zhang, Zheng Zou, Tiehui Wu, Zijie Xiao, Dan Feng, Jianbin Zhong, Xianshao Zou, Ningjiu Zhao   +7 more
wiley   +1 more source

1970 W 1030 nm Single-Mode All-Fiber Master Oscillator Power Amplifier with ~3.2 GHz Linewidth Based on Ultra-Low NA Active Fiber

Photonics
A high-power narrow-linewidth fiber laser with single-mode beam quality is experimentally demonstrated. By employing a cascaded phase modulation strategy, the stimulated Brillouin scattering (SBS) threshold of the laser is effectively increased from 973 ...
Yang Liu, Xiaoyong Xu, Mengfan Cui, Wei Li, Chongwei Wang, Yan Peng, Junjie Zheng, Zilun Chen, Yisha Chen, Wei Liu, Hu Xiao, Zefeng Wang, Pengfei Ma   +12 more
doaj   +1 more source

A 20 W, Less-Than-1-kHz Linewidth Linearly Polarized All-Fiber Laser

Applied Sciences, 2018
We report a continuous-wave high-output power and narrow-linewidth all-fiber laser at 1550 nm with the master oscillator power amplifier (MOPA) configuration. An all-fiber distributed feedback seed laser was boosted by three cascaded fiber amplifiers. In
Mingyuan Xue, Cunxiao Gao, Linquan Niu, Shaolan Zhu, Chuandong Sun, Jian Zhang, Haodong He   +6 more
doaj   +1 more source

Monolithic narrow-linewidth InGaAsP semiconductor laser for coherent optical communications [PDF]

A design for a monolithic narrow-linewidth InGaAsP diode laser has been developed using a multiple-quantum-well (MQW) extended-passive-cavity distributed-Bragg-reflector (DBR) laser design.
Enstrom, R. E., Longeway, P. A., Palfrey, S. L.   +2 more
core   +1 more source