Results 31 to 40 of about 11,995 (149)

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

Principles of Selective Area Epitaxy and Applications in III–V Semiconductor Lasers Using MOCVD: A Review

Crystals, 2022
Selective area epitaxy (SAE) using metal–organic chemical vapor deposition (MOCVD) is a crucial fabrication technique for lasers and photonic integrated circuits (PICs).
Bin Wang, Yugang Zeng, Yue Song, Ye Wang, Lei Liang, Li Qin, Jianwei Zhang, Peng Jia, Yuxin Lei, Cheng Qiu, Yongqiang Ning, Lijun Wang   +11 more
doaj   +1 more source

Investigation of localized and delocalized excitons in ZnO/ZnS core-shell heterostructured nanowires

Nanophotonics, 2016
The localized states in ZnO nanowires (NWs) through the growth of ZnS shell have been introduced in this paper. Morphology and optical properties of the ZnO/ZnS core-shell heterostructured NWs after different rapid thermal annealing (RTA) treatments are ...
Li Ruxue, Wei Zhipeng, Zhao Fenghuan, Gao Xian, Fang Xuan, Li Yongfeng, Wang Xinwei, Tang Jilong, Fang Dan, Wang Haizhu, Chen Rui, Wang Xiaohua   +11 more
doaj   +1 more source

Effective Linewidth of Semiconductor Lasers for Coherent Optical Data Links

Photonics, 2016
We discuss the implications of using monolithically integrated semiconductor lasers in high capacity optical coherent links suitable for metro applications, where the integration capabilities of semiconductor lasers make them an attractive candidate to ...
Miguel Iglesias Olmedo, Xiaodan Pang, Richard Schatz, Oskars Ozolins, Hadrien Louchet, Darko Zibar, Gunnar Jacobsen, Idelfonso Tafur Monroy, Sergei Popov   +8 more
doaj   +1 more source

Reality or fantasy—Perovskite semiconductor laser diodes

EcoMat, 2021
Perovskite semiconductor has emerged as a promising laser gain medium; however, it is still a challenge to fabricate electrically pumped perovskite lasers due to the insufficient electrical‐to‐optical conversion efficiency.
Wei Gao, Siu Fung Yu
doaj   +1 more source

Optical double-locked semiconductor lasers

Results in Physics, 2018
Self-sustained period-one (P1) nonlinear dynamics of a semiconductor laser are investigated when both optical injection and modulation are applied for stable microwave frequency generation.
Mohammad AlMulla
doaj   +1 more source

Breakthroughs in Semiconductor Lasers

IEEE Photonics Journal, 2012
The latest breakthroughs on the frontiers of semiconductor laser capabilities are presented. Achievements including the impressive advances in high-speed lasers with low pJ/bit energy consumption, high-power vertical external cavity surface emitting ...
Mark T. Crowley, Vassilios Kovanis, Luke F. Lester   +2 more
doaj   +1 more source

Electrically driven deep ultraviolet MgZnO lasers at room temperature

Scientific Reports, 2017
Semiconductor lasers in the deep ultraviolet (UV) range have numerous potential applications ranging from water purification and medical diagnosis to high-density data storage and flexible displays.
Mohammad Suja, Sunayna Binte Bashar, Bishwajit Debnath, Longxing Su, Wenhao Shi, Roger Lake, Jianlin Liu   +6 more
doaj   +1 more source

Improved Beam Quality of Coherently Combined Angled-Grating Broad-Area Lasers

IEEE Photonics Journal, 2013
We improve the beam quality and performance of coherently combined angled-grating broad-area lasers through current/gain confinement. We show that the nonuniform current/gain distribution in our previous lasers excites the second-order Bragg mode and ...
Yunsong Zhao, Lin Zhu
doaj   +1 more source

Monolithic Fabrication of InGaAs/GaAs/AlGaAs Multiple Wavelength Quantum Well Laser Diodes via Impurity-Free Vacancy Disordering Quantum Well Intermixing

IEEE Journal of the Electron Devices Society, 2017
InGaAs/GaAs/AlGaAs multiple wavelength quantum well (QW) semiconductor laser diodes (LDs) have been fabricated by impurity-free vacancy disordering (IFVD) QW intermixing (QWI) method.
Zhongliang Qiao, Xiaohong Tang, Xiang Li, Baoxue Bo, Xin Gao, Yi Qu, Chongyang Liu, Hong Wang   +7 more
doaj   +1 more source