Damage effect of TEA CO2 long wave infrared laser on detector assembly of infrared staring imaging system

2021 ◽  
Vol 29 (6) ◽  
pp. 1217-1224
Author(s):  
Yin ZHANG ◽  
◽  
Jun-feng SHAO ◽  
Wei TANG
Keyword(s):  
Imaging System ◽  
Infrared Laser ◽  
Damage Effect ◽  
Long Wave ◽  
Long Wave Infrared ◽  
Staring Imaging System ◽  
Detector Assembly

scholarly journals Two-photon vibrational excitation of air by long-wave infrared laser pulses

2016 ◽  
Vol 94 (2) ◽  
Author(s):  
J. P. Palastro ◽  
J. Peñano ◽  
L. A. Johnson ◽  
B. Hafizi ◽  
J. K. Wahlstrand ◽  
...  
Keyword(s):  
Vibrational Excitation ◽  
Laser Pulses ◽  
Infrared Laser ◽  
Two Photon ◽  
Long Wave ◽  
Long Wave Infrared

Calibration Method of Micro-polarizer Array Long-wave Infrared Imaging System

2019 ◽  
Vol 48 (6) ◽  
pp. 611004
Author(s):  
闫羽 YAN Yu ◽  
徐小红 XU Xiao-hong ◽  
范之国 FAN Zhi-guo ◽  
张强 ZHANG Qiang ◽  
金海红 JIN Hai-hong
Keyword(s):  
Infrared Imaging ◽  
Imaging System ◽  
Calibration Method ◽  
Infrared Imaging System ◽  
Long Wave ◽  
Long Wave Infrared

scholarly journals High-power long-wave infrared laser based on polarization beam coupling technique

2020 ◽  
Vol 8 ◽  
Author(s):  
Yingjie Shen ◽  
Chuanpeng Qian ◽  
Xiaoming Duan ◽  
Ruijun Lan
Keyword(s):  
Output Power ◽  
High Power ◽  
Beam Quality ◽  
Maximum Output Power ◽  
Infrared Laser ◽  
Maximum Output ◽  
Coupling Technique ◽  
Long Wave ◽  
Beam Coupling ◽  
Long Wave Infrared

We demonstrated a high-power long-wave infrared laser based on a polarization beam coupling technique. An average output power at $8.3~\unicode[STIX]{x03BC}\text{m}$ of 7.0 W was achieved at a maximum available pump power of 107.6 W, corresponding to an optical-to-optical conversion of 6.5%. The coupling efficiency of the polarization coupling system was calculated to be approximately 97.2%. With idler single resonance operation, a good beam quality factor of ${\sim}1.8$ combined with an output wavelength of $8.3~\unicode[STIX]{x03BC}\text{m}$ was obtained at the maximum output power.

scholarly journals Self-Guiding of Long-Wave Infrared Laser Pulses Mediated by Avalanche Ionization

2020 ◽  
Vol 125 (13) ◽  
Author(s):  
D. Woodbury ◽  
A. Goffin ◽  
R. M. Schwartz ◽  
J. Isaacs ◽  
H. M. Milchberg
Keyword(s):  
Laser Pulses ◽  
Infrared Laser ◽  
Avalanche Ionization ◽  
Long Wave ◽  
Long Wave Infrared

scholarly journals A High-Energy, Narrow-Pulse-Width, Long-Wave Infrared Laser Based on ZGP Crystal

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 656
Author(s):  
Chuanpeng Qian ◽  
Ting Yu ◽  
Jing Liu ◽  
Yuyao Jiang ◽  
Sijie Wang ◽  
...  
Keyword(s):  
Pulse Width ◽  
Beam Quality ◽  
Average Power ◽  
High Energy ◽  
Infrared Laser ◽  
Average Output ◽  
Pump Source ◽  
Long Wave ◽  
Maximal Average ◽  
Long Wave Infrared

In this paper, we present a high-energy, narrow pulse-width, long-wave infrared laser based on a ZnGeP2 (ZGP) optical parametric oscillator (OPO). The pump source is a 2.1 μm three -stage Ho:YAG master oscillator power-amplifier (MOPA). At a repetition frequency of 1 kHz, the Ho:YAG MOPA system outputs the maximal average power of 52.1 W, which corresponds to the shortest pulse width of 14.40 ns. By using the Ho:YAG MOPA system as the pump source, the maximal average output powers of 3.15 W at 8.2 μm and 11.4 W at 2.8 μm were achieved in a ZGP OPO. The peak wavelength and linewidth (FWHM) of the long-wave infrared laser were 8156 nm and 270 nm, respectively. At the maximal output level, the pulse width and beam quality factor M2 were measured to be 8.10 ns and 6.2, respectively.

scholarly journals Laser-based long-wave-infrared hyperspectral imaging system for the standoff detection of trace surface chemicals

2020 ◽  
Vol 59 (09) ◽  
pp. 1
Author(s):  
Anish K. Goyal ◽  
Derek Wood ◽  
Vincent Lee ◽  
Joshua Rollag ◽  
Peter Schwarz ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Imaging System ◽  
Standoff Detection ◽  
Long Wave ◽  
Long Wave Infrared

Long-Wave, Infrared Laser-Induced Breakdown (LIBS) Spectroscopy Emissions from Energetic Materials

2012 ◽  
Vol 66 (12) ◽  
pp. 1397-1402 ◽  
Author(s):  
Clayton S.-C. Yang ◽  
Ei E. Brown ◽  
Uwe Hommerich ◽  
Feng Jin ◽  
Sudhir B. Trivedi ◽  
...  
Keyword(s):  
Energetic Materials ◽  
Infrared Laser ◽  
Long Wave ◽  
Laser Induced Breakdown ◽  
Long Wave Infrared

scholarly journals Design of a Dual-Band Compact Integrated Remote Sensing System for Visible Light and Long-Wave Infrared

2021 ◽  
Vol 11 (20) ◽  
pp. 9370
Author(s):  
Ruichang Li ◽  
Gangyi Zou ◽  
Liangjie Feng ◽  
Xuewu Fan
Keyword(s):  
Visible Light ◽  
Environmental Changes ◽  
Imaging System ◽  
Integrated System ◽  
Dual Band ◽  
Modulation Transfer ◽  
Infrared Band ◽  
Light Band ◽  
Long Wave ◽  
Long Wave Infrared

This paper presents a design of a dual-band integrated space telescope system for visible light and long-wave infrared. The system can simultaneously image the visible light band of 450–900 nm and the long-wave infrared band of 7700–10,500 nm. The dual-band integrated imaging system can freely switch the observation band to adapt to different scenes and environmental changes. The camera can also further expand its capabilities in the fields of multi-spectral observation and low-light observation by collocation with different detectors. This design is based on a coaxial reflection system, the two bands share the camera's primary and secondary mirrors, and the separation of the two bands is achieved through a separate field of view design. After simulation, the average Modulation Transfer Function (MTF) value of the visible light band of the system at 50 lp/mm (line pairs per millimeter) reaches 0.45, and the average MTF value of the long-wave infrared band at 50 lp/mm reaches 0.36. In addition, tolerance analysis, ambient temperature analysis and transmittance analysis of the integrated system are carried out in this paper to further improve the integrated system scheme, and the feasibility of the system is further verified.

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