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 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

scholarly journals Publisher's Note: Two-photon vibrational excitation of air by long-wave infrared laser pulses [Phys. Rev. A 94 , 023816 (2016)]

2018 ◽  
Vol 97 (1) ◽  
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

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 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.

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

Elimination of trailing in long-wave infrared laser target simulation

2019 ◽  
Vol 48 (7) ◽  
pp. 704004
Author(s):  
黄战华 Huang Zhanhua ◽  
陈勃昊 Chen Bohao ◽  
刘 堃 Liu Kun ◽  
蔡怀宇 Cai Huaiyu ◽  
张尹馨 Zhang Yinxin
Keyword(s):  
Infrared Laser ◽  
Laser Target ◽  
Long Wave ◽  
Long Wave Infrared
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