Effect of 355 nm and 1064 nm dual-wavelength conditioning on the bulk damage properties of DKDP crystal

Li Yunfei; Shi Jinfang; Qiu Rong; Yu Jian; Guo Decheng; Zhou Lei

doi:10.11884/HPLPB202234.220060

Volume 34 Issue 6

Apr. 2022

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Article Navigation > High Power Laser and Particle Beams > 2022 > 34(6): 061003

Li Yunfei, Shi Jinfang, Qiu Rong, et al. Effect of 355 nm and 1064 nm dual-wavelength conditioning on the bulk damage properties of DKDP crystal[J]. High Power Laser and Particle Beams, 2022, 34: 061003. doi: 10.11884/HPLPB202234.220060

Citation:

Li Yunfei, Shi Jinfang, Qiu Rong, et al. Effect of 355 nm and 1064 nm dual-wavelength conditioning on the bulk damage properties of DKDP crystal[J]. High Power Laser and Particle Beams, 2022, 34: 061003. doi: 10.11884/HPLPB202234.220060

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Effect of 355 nm and 1064 nm dual-wavelength conditioning on the bulk damage properties of DKDP crystal

doi: 10.11884/HPLPB202234.220060

Li Yunfei^{1, 2
,},
Shi Jinfang^{1, 2
,
,},
Qiu Rong²,
Yu Jian^{1, 2},
Guo Decheng²,
Zhou Lei²

1.
School of Manufacturing Science and Engineering, Key Laboratory of Testing Technology for Manufacturing Process of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China
2.
Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China

Received Date: 2022-03-03
Accepted Date: 2022-04-26
Rev Recd Date: 2022-04-20

Available Online: 2022-04-30

Publish Date: 2022-06-15

Abstract

Abstract

To study the 3ω damage characteristics of DKDP crystals after 3ω conditioning, 3ω and 1ω conditioning at the same time, a dual-wavelength conditioning and damage test experimental system was established. The conditioning effects of 1ω energy density under dual wavelength irradiation were studied emphatically. The energy coupling mechanism in the conditioning process of dual-wavelength irradiation was analyzed. Research results show that the effect of dual-wavelength conditioning is significantly better than that of single wavelength. In the case of dual-wavelength simultaneous irradiation conditioning, the 1ω which is far below the threshold value of its own conditioning participates in the conditioning. Under the same conditioning strategy of 3ω energy density and energy gradient, there is an optimal value of 1ω energy density.
- laser induced damage,
- DKDP crystal,
- laser conditioning,
- dual-wavelength laser,
- energy coupling effect

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References(20)

References

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