Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection
We present experimental results on kilojoule ultraviolet laser output with 1% spectral broadening. Through stimulated rotational Raman scattering (SRRS) with signal laser injection, we achieve effective spectral broadening in short-range propagation, with good retention of the original near-field di...
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-01-01
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| Series: | Matter and Radiation at Extremes |
| Online Access: | http://dx.doi.org/10.1063/5.0220473 |
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| author | Xiangbing Wang Xiangxu Chai Ping Li Bo Zhang Qihua Zhu Xiaocheng Tian Ju Wang Zhaoyu Zong Song Zhou Ke Yao Sen Li Junpu Zhao Zhitao Peng |
| author_facet | Xiangbing Wang Xiangxu Chai Ping Li Bo Zhang Qihua Zhu Xiaocheng Tian Ju Wang Zhaoyu Zong Song Zhou Ke Yao Sen Li Junpu Zhao Zhitao Peng |
| author_sort | Xiangbing Wang |
| collection | DOAJ |
| description | We present experimental results on kilojoule ultraviolet laser output with 1% spectral broadening. Through stimulated rotational Raman scattering (SRRS) with signal laser injection, we achieve effective spectral broadening in short-range propagation, with good retention of the original near-field distribution and time waveform. Theoretical calculations show that 2% bandwidth spectral broadening can be achieved by injecting 20 kW/cm2 signal light at 2.2 GW/cm2 flux of the pump laser. In addition, high-frequency modulation in the near field can be effectively avoided through replacement of the original random noise signal light by the controllable signal light. The SRRS in the atmospheric environment excited with signal laser injection can provide wide-band light output with controllable beam quality without long-distance propagation, representing an important potential route to realization of broadband laser drivers. |
| format | Article |
| id | doaj-art-125ca44a06b64814b1c7e5a9d792ca05 |
| institution | Kabale University |
| issn | 2468-080X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | Matter and Radiation at Extremes |
| spelling | doaj-art-125ca44a06b64814b1c7e5a9d792ca052025-02-03T16:33:24ZengAIP Publishing LLCMatter and Radiation at Extremes2468-080X2025-01-01101017401017401-610.1063/5.0220473Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injectionXiangbing Wang0Xiangxu Chai1Ping Li2Bo Zhang3Qihua Zhu4Xiaocheng Tian5Ju Wang6Zhaoyu Zong7Song Zhou8Ke Yao9Sen Li10Junpu Zhao11Zhitao Peng12Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaWe present experimental results on kilojoule ultraviolet laser output with 1% spectral broadening. Through stimulated rotational Raman scattering (SRRS) with signal laser injection, we achieve effective spectral broadening in short-range propagation, with good retention of the original near-field distribution and time waveform. Theoretical calculations show that 2% bandwidth spectral broadening can be achieved by injecting 20 kW/cm2 signal light at 2.2 GW/cm2 flux of the pump laser. In addition, high-frequency modulation in the near field can be effectively avoided through replacement of the original random noise signal light by the controllable signal light. The SRRS in the atmospheric environment excited with signal laser injection can provide wide-band light output with controllable beam quality without long-distance propagation, representing an important potential route to realization of broadband laser drivers.http://dx.doi.org/10.1063/5.0220473 |
| spellingShingle | Xiangbing Wang Xiangxu Chai Ping Li Bo Zhang Qihua Zhu Xiaocheng Tian Ju Wang Zhaoyu Zong Song Zhou Ke Yao Sen Li Junpu Zhao Zhitao Peng Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection Matter and Radiation at Extremes |
| title | Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection |
| title_full | Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection |
| title_fullStr | Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection |
| title_full_unstemmed | Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection |
| title_short | Ultraviolet spectral broadening by stimulated rotational Raman scattering on nitrogen pumped with signal laser injection |
| title_sort | ultraviolet spectral broadening by stimulated rotational raman scattering on nitrogen pumped with signal laser injection |
| url | http://dx.doi.org/10.1063/5.0220473 |
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