Demonstration of multi-pass amplification of 46.9 nm laser pumped by capillary discharge

Zhao Dongdi; Zhao Yongpeng; An Bo; Li Jiaqi; Cui Huaiyu

doi:10.1063/5.0150165

Volume 8 Issue 4

Jul. 2023

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Zhao Dongdi, Zhao Yongpeng, An Bo, Li Jiaqi, Cui Huaiyu. Demonstration of multi-pass amplification of 46.9 nm laser pumped by capillary discharge[J]. Matter and Radiation at Extremes, 2023, 8(4): 044402. doi: 10.1063/5.0150165

Citation:

Zhao Dongdi, Zhao Yongpeng, An Bo, Li Jiaqi, Cui Huaiyu. Demonstration of multi-pass amplification of 46.9 nm laser pumped by capillary discharge[J]. Matter and Radiation at Extremes, 2023, 8(4): 044402. doi: 10.1063/5.0150165

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Demonstration of multi-pass amplification of 46.9 nm laser pumped by capillary discharge

doi: 10.1063/5.0150165

National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150080, China

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Corresponding author: a)Author to whom correspondence should be addressed: zhaoyp3@hit.edu.cn
Received Date: 2023-03-12
Accepted Date: 2023-04-28

Available Online: 2023-07-01

Publish Date: 2023-07-01

Abstract

Abstract

Using a plane–plane resonator composed of silicon carbide mirrors, we achieve for the first time multi-pass amplification of a 46.9 nm laser pumped by capillary discharge. In terms of the temporal characteristics, for an initial argon pressure of 17 Pa, triple-pass amplification of the laser is obtained at a delay time between the pre-pulse and the main pulse currents of 40 µs, and quadruple-pass amplification is obtained at a delay time of 50 µs. The experimental results show that the gain duration of the plasma column is more than 6 ns. In terms of spatial characteristics, the spot of the output laser has a reduced full width at half maximum divergence compared with that from a laser without a resonator.

Conflict of Interest
The authors have no conflicts to disclose.
Dongdi Zhao: Conceptualization (lead); Data curation (equal); Formal analysis (equal); Investigation (lead); Writing – original draft (lead); Writing – review & editing (equal). Yongpeng Zhao: Conceptualization (lead); Data curation (equal); Formal analysis (equal); Investigation (lead); Writing – original draft (lead); Writing – review & editing (equal). Bo An: Investigation (equal); Writing – review & editing (equal). Jiaqi Li: Investigation (equal); Writing – review & editing (equal). Huaiyu Cui: Investigation (equal); Writing – review & editing (equal).
Author Contributions
The data that support the findings of this study are available from the corresponding author upon reasonable request.

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References(16)

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