Results 1 to 10 of about 1,147 (192)

Single Transverse Whispering-Gallery Mode AlGaInAs/InP Hexagonal Resonator Microlasers

IEEE Photonics Journal, 2011
AlGaInAs/InP hexagonal resonator microlasers with an output waveguide connected to one vertex of the hexagon are fabricated using standard photolithography and inductively coupled plasma (ICP) etching process.
J. D. Lin, Y. Z. Huang, Y. D. Yang, Q. F. Yao, X. M. Lv, J. L. Xiao, Y. Du   +6 more
doaj   +1 more source

High-power, high-wall-plug-efficiency quantum cascade lasers with high-brightness in continuous wave operation at 3–300μm

Light: Science & Applications
Quantum cascade lasers (QCLs) are unipolar quantum devices based on inter-sub-band transitions. They break the electron-hole recombination mechanism in traditional semiconductor lasers, overcome the long-lasting bottleneck which is that the emission ...
Manijeh Razeghi, Yanbo Bai, Feihu Wang
doaj   +1 more source

Widely-Tunable Ring-Resonator Semiconductor Lasers

Applied Sciences, 2017
Chip-scale widely-tunable lasers are important for both communication and sensing applications. They have a number of advantages, such as size, weight, and cost compared to mechanically tuned counterparts.
Tin Komljenovic, Linjun Liang, Rui-Lin Chao, Jared Hulme, Sudharsanan Srinivasan, Michael Davenport, John E. Bowers   +6 more
doaj   +1 more source

Synchronization and optimization of semiconductor ring lasers with self-feedback

AIP Advances, 2015
This paper deals with the problem of synchronization and optimization of semiconductor ring lasers. When the frequency mismatch is −20 GHz and the injection coefficient is greater than 2.5, the semiconductor ring lasers in two different configurations ...
Ping-Ping Xue, Jian-Zhong Zhang, Ling-Zhen Yang   +2 more
doaj   +1 more source

The effectiveness of high-power diode laser as an adjunct to mechanical instrumentation of deep pockets in a patient with generalized, stage III, grade C periodontitis

RGO: Revista Gaúcha de Odontologia
Periodontitis is an inflammatory clinical condition caused by dysbiotic biofilm that results in progressive destruction of periodontal attachment and can lead to tooth loss if left untreated.
Wâne Marquesa Jordão Limeira, Maria Juliana Alcantara de Sousa Peixoto, Ítalo de Macedo Bernardino, Luana Samara Balduino de Sena, Rachel de Queiroz Ferreira Rodrigues, João Nilton Lopes de Sousa   +5 more
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A Phenomenological Model for Dynamic Expansion of Defects in Semiconductor Lasers

Crystals
The failures of semiconductor lasers are often linked to the emergence or growth of defects. However, most research mainly focuses on the postmortem failure analysis caused by defects, lacking dynamic process analysis of defect expansion. This limitation
Yuqi Zhang, Jia Zhao, Feng Gao
doaj   +1 more source

Effect of Strained Quantum Wells of Enhanced Performance for Quantum Well Lasers in Direct Modulation

مجلة النهرين للعلوم الهندسية, 2011
Strained-layer quantum wells are interesting for applications in semiconductor lasers , because they allow both, a wider range of material combinations, and a certain amount of band structure and gain engineering.
Mohammed Adnan Mahdi
doaj  

Performance optimization of planar photonic crystal bound states in the continuum cavities: mitigating finite-size effects

Frontiers of Optoelectronics
Bound states in the continuum (BICs) offer a promising solution to achieving high-quality factor (Q factor) cavities. However, finite-size effects severely deteriorate the BIC mode in practical applications.
Ran Hao, Bilin Ye, Jinhong Xu, Yonggang Zou   +3 more
doaj   +1 more source

EA-Directing Formamidinium-Based Perovskite Microwires with A‑Site Doping

ACS Omega, 2021
Shan Xu, Xue Ding, Huafeng Shi, Xinhai Zhang, Xiaowei Sun, Ning Ji, Xiaoli Zhang, Zhaoyu Zhang   +7 more
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Surface State Passivation and Optical Properties Investigation of GaSb via Nitrogen Plasma Treatment

ACS Omega, 2018
Xuan Fang, Zhipeng Wei, Dan Fang, Xueying Chu, Jilong Tang, Dengkui Wang, Xinwei Wang, Jinhua Li, Yongfeng Li, Bin Yao, Xiaohua Wang, Rui Chen   +11 more
doaj   +1 more source