scholarly journals Off-line sub-nanosecond laser conditioning on large aperture deuterated potassium dihydrogen phosphate crystal

2021 ◽  
Vol 70 (7) ◽  
pp. 074208-074208
Author(s):  
Liu Zhi-Chao ◽  
◽  
Xu Qiao ◽  
Lei Xiang-Yang ◽  
Geng Feng ◽  
...  
Keyword(s):  
Potassium Dihydrogen Phosphate ◽  
Nanosecond Laser ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Large Aperture ◽  
Laser Conditioning

scholarly journals Suppression of transverse stimulated Raman scattering in large-aperture potassium dihydrogen phosphate crystals by pulse stacking

2019 ◽  
Vol 37 (01) ◽  
pp. 1-4
Author(s):  
Xinmin Fan ◽  
Sensen Li ◽  
Jianxin Zhang ◽  
Xiaodong Huang ◽  
Chunyan Wang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Technical Problem ◽  
Potassium Dihydrogen Phosphate ◽  
Dihydrogen Phosphate ◽  
Kdp Crystal ◽  
Potassium Dihydrogen ◽  
Suppression Effect ◽  
Large Aperture ◽  
Stimulated Raman

AbstractEffective suppression of transverse stimulated Raman scattering (TSRS) in a large-aperture potassium dihydrogen phosphate (KDP) crystal is an important scientific and technical problem in high-intensity laser research and applications. In this work, a method to suppress TSRS using pulse stacking is proposed. The method suppresses TSRS significantly, with greater numbers of subpulses producing more obvious suppression effects, and the threshold intensity growth rate of the 3ω laser in the KDP crystal reaches up to about 1.9 when the stacked pulse contains four subpulses. This suppression effect is attributed to the fact that the polarization directions of adjacent subpulses are perpendicular to each other. The method can be used to suppress other nonlinear effects, including transverse stimulated Brillouin scattering in large-aperture optical devices and stimulated rotational Raman scattering in long air paths.

scholarly journals The relationship between the laser damaged threshold and step velocity in different supersaturation regions

RSC Advances ◽  
2018 ◽  
Vol 8 (64) ◽  
pp. 36453-36458
Author(s):  
Weidong Li ◽  
Yu Li ◽  
Shenglai Wang ◽  
Wenyong Cheng
Keyword(s):  
Potassium Dihydrogen Phosphate ◽  
Nanosecond Laser ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Step Velocity ◽  
The Relationship ◽  
Kdp Crystals

The laser damaged threshold (LDT) of potassium dihydrogen phosphate (KDP) crystals grown at different supersaturation points were investigated using a Nd:YAG nanosecond laser.

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