Results 21 to 30 of about 691,548 (292)

1064/1319 nm Dual-Wavelength Alternating Electro-Optic Q-Switched Laser Based on the Common Q-Switching Bias Voltage

Photonics, 2023
A dual-wavelength alternating electro-optic (EO) Q-switched laser operating at 1064 and 1319 nm is designed, which takes the structure of double the gain crystals and a single EO modulator with the common Q-switching bias voltage (CQBV).
Jingdong Sun, Chunhe Yu, Yuan Dong, Chunting Wu, Guangyong Jin   +4 more
doaj   +1 more source

Study on Mid-Infrared Energy Conversion of a Doubly Resonant Optical Parametric Oscillator Using Aperiodically Poled Lithium Niobate

Applied Sciences, 2022
This paper presents an external-cavity dual-wavelength mid-infrared multiple optical parametric oscillator based on a single MgO:APLN crystal, which is pumped by a pulsed 1.064 μm laser.
Zijian Wang, Bingyang Li, Yuheng Wang, Renzhe Han, Yaru Yang, Yongji Yu, Guangyong Jin   +6 more
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13.5 μJ, 20 kHz Repetition Rate, Single Frequency Pr³⁺:YLF Master Oscillator Power Amplifier System

Photonics, 2023
This article describes a master oscillator and power amplifier (MOPA) system with a single longitudinal mode (SLM) and high-repetition-frequency Pr3+:YLF active medium that was end-pumped by two 444 nm laser diodes.
Weicheng Dai, Long Jin, Chang Liu, Yuan Dong, Guangyong Jin   +4 more
doaj   +1 more source

Effect of carrier confinement on effective mass of excitons and estimation of ultralow disorder in Al x Ga1−x As/GaAs quantum wells by magneto-photoluminescence

Scientific Reports, 2017
Effect of charge carrier confinement and ultra-low disorder acquainted in AlGaAs/GaAs multi-quantum well system is investigated via Magneto-photoluminescence spectroscopy.
S. Haldar, V. K. Dixit, Geetanjali Vashisht, Shailesh Kumar Khamari, S. Porwal, T. K. Sharma, S. M. Oak   +6 more
doaj   +1 more source

Laser-induced ignition of methane-air mixtures by a four-beam, pulse-burst mode passively Q-switched Nd:YAG/Cr4+:YAG laser

Results in Physics, 2022
In this work we report on the characteristics of laser ignition of CH4-air mixtures, using multi-point (up to four points) ignition with single-pulse beams as well as with trains of two pulses.
Ciprian Dumitrache, Nicolae-Tiberius Vasile, Gabriela Croitoru, Nicolaie Pavel   +3 more
doaj   +1 more source

High-Power High Beam Quality Narrow-Linewidth Quasicontinuous Wave Microsecond Pulse 1064-nm Nd:YAG Amplifier

IEEE Photonics Journal, 2016
We demonstrated a high average power, high beam quality, narrow linewidth, quasicontinuous wave (QCW) diode-pumped 1064-nm Nd:YAG amplifier. A narrow-linewidth QCW pulse Nd:YAG oscillator was employed as the seed laser, providing a maximum average power ...
Chuan Guo, Qi Bian, Chang Xu, Junwei Zuo, Yong Bo, Zhimin Wang, Yu Shen, Nan Zong, Hongwei Gao, Yang Liu, Dafu Cui, Qinjun Peng, Zuyan Xu   +12 more
doaj   +1 more source

A Stable and Compact Mid-IR at 6.45 μm Exceeding 6 mJ of Pulse Energy BaGa₄Se₇ Optical Parametric Oscillator

Applied Sciences, 2023
We experimentally demonstrate a stable and compact high pulse energy mid-infrared (MIR) 6.45 μm laser, which is produced by an optical parametric oscillator (OPO) based on the non-oxide BaGa4Se7 (BGSe) nonlinear crystal pumped by 1064 nm Nd:YAG laser ...
Ning Wen, Yu Shen, Ya Wen, Erpeng Wang, Jiyong Yao, You Fang, Hongwei Gao, Yong Bo, Zhongzheng Chen, Qinjun Peng   +9 more
doaj   +1 more source

Theoretical and Experimental Investigation on Temperature Rise of CFRP with Long Pulse Laser Irradiation

Applied Sciences, 2021
Carbon fiber reinforced polymers (CFRP) are a widely used composite material applied in both commercial and industrial utilization. Based on the heat conduction theory, a theoretical model for the temperature rise of braided CFRP irradiated by long pulse
Yao Ma, Qiang Huang, Yixin Yu, Yuan Dong, Hui Li, Guangyong Jin, Chao Xin   +6 more
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Simulation and Experimental Study of Nanosecond Pulse Laser Removal of Epoxy Paint on 6061 Aluminum Alloy Surface

Photonics, 2023
Laser paint removal is a new cleaning technology that mainly removes paint through thermal ablation and mechanical stripping mechanisms. This paper established a thermal-mechanical coupling laser removal model of paint based on the heat conduction ...
Yahui Li, Jingyi Li, Hang Dong, Wei Zhang, Guangyong Jin   +4 more
doaj   +1 more source

1.4 W Passively Q-Switched Mode-Locked Tm:CALGO Laser with a MoS₂ Saturable Absorber

Photonics
The passively Q-switched mode-locked (QML) operation of a Tm:CaGdAlO4 (Tm:CALGO) bulk laser pumped by a wavelength-tunable Ti:sapphire oscillator using molybdenum disulfide (MoS2) as a saturable absorber was demonstrated.
Weijun Ling, Hao Xu, Jinfang Yang, Xue Qiu, Taotao He, Purui An, Chao Bi, Shichao Yuan, Man Wang, Xinye Tian, Zhong Dong   +10 more
doaj   +1 more source