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Laser plasma interaction (LPI) is an important content in laser plasma related research, and it is one of the key issues related to the success or failure of inertial confinement fusion ignition, and has received extensive attention. In order to suppress the relevant LPI process as much as possible, the major laboratories around the world have developed a variety of beam smoothing methods through decades of research. However, the current understanding and suppression of LPI are still far from enough, and further in-depth studies are still needed. Generally, the research of LPI is based on nanosecond laser driving, and focuses mainly on the effects of the related LPI process caused by nanosecond lasers. However, the LPI processes, such as stimulated Brillouin scattering (SBS), stimulated Raman scattering (SRS), etc., occur and develop on a time scale of picoseconds.The comprehensive effect can be studied only on a longer scale of nanosecond. For highly nonlinear LPI processes, the comprehensive effect may be difficult to reflect the real physical laws. The emergence of the picosecond laser has made it possible to study the LPI process in more detail and on a more appropriate time scale. The present research tries to gain an understanding of LPI from a more refined perspective. The experimental research of picosecond laser driving LPI is carried out on the Shenguang-Ⅱ upgrade and picosecond laser facilities. First, a nanosecond laser is used to irradiate a target to generate a large-scale plasma, and a few nanoseconds later, the picosecond laser is injected as an interaction beam to drive the LPI scattering such as SBS and SRS. The spectral signal of backscatter light is measured experimentally by using the method of diffuse reflector. From the research results it is found that the backward signals of the band near the laser wavelength contain, in addition to the true backward SBS component, a large number of interference signals introduced by picosecond laser and nanosecond laser. The interference signal introduced by nanosecond laser can be eliminated by using specific measures, but the interference signal introduced by picosecond laser cannot be eliminated experimentally, which will affect the estimation of the true share of the backward SBS. The comprehensive results show that under different experimental conditions, the backward scatter energy of SBS may be less than half that of the total recorded signals. This result is helpful in further understanding and re-recognizing previous relevant experimental data.
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Keywords:
- laser plasma interaction /
- picosecond laser /
- stimulated Brillouin scattering /
- spectral structure
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[8] Maximov V, Myatt J, Seka W, Short R W, Craxton R S 2004 Phys. Plasmas 11 2994Google Scholar
[9] 刘占军, 郝亮, 项江, 郑春阳 2012 61 115202Google Scholar
Liu Z J, Hao L, Xiang J, Zheng C Y 2012 Acta Phys. Sin 61 115202Google Scholar
[10] Kirkwood R K, Moody J D, Kline J, Dewald E, Glenzer S, Divol L, Michel P, Hinkel D, Berger R, Williams E, Milovich J, Yin L, Rose H, MacGowan B, Landen O, Rosen M, Lindl J 2013 Plasma Phys. Controlled Fusion 55 103001Google Scholar
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[13] Zhao Y, Sheng Z M, Weng S M, Ji S Z, Zhu J Q 2019 High Power Laser Sci. Eng. 7 e20Google Scholar
[14] Ji Y, Lian C W, Yan R, Ren C, Yang D, Wan Z H, Zhao B, Wang C, Fang Z H, Zheng J 2021 Matter Radiat. Extremes 6 015901Google Scholar
[15] Strickland D, Mourou G 1985 Opt. Commun. 56 219Google Scholar
[16] Danson C, Hillier D, Hopps N, Neely D 2015 High Power Laser Sci. Eng. 3 e3Google Scholar
[17] Baldis H A, Villeneuve D M, Fontaine B L, Enright G D, Labaune C, Baton S, Mounaix Ph, Pesme D, Casanova M, Rozmus W 1993 Phys. Fluids B 5 3319Google Scholar
[18] Baton S D, Rousseaux C, Mounaix P H, Labaune C, Fontaine B La, Pesme D, Renard N, Gary S, Louis-Jacquet M, Baldis H A 1994 Phys. Rev. E 49 R3602Google Scholar
[19] Rousseaux C, Malka G, Miquel J L, Amiranoff F, Baton S D, Mounaix Ph 1995 Phys. Rev. Lett. 74 4655Google Scholar
[20] Rousseaux C, Gremillet L, Casanova M, Loiseau P, Rabec Le Gloahec M, Baton S D, Amiranoff F, Adam J C, Héron A 2006 Phys. Rev. Lett. 97 015001Google Scholar
[21] Rousseaux C, Glize K, Baton S D, Lancia L, Bénisti D, Gremillet L 2016 Phys. Rev. Lett. 117 015002Google Scholar
[22] Rousseaux C, Baton S D, Bénisti D, Gremillet L, Loupias B, Philippe F, Tassin V, Amiranoff F, Kline J L, Montgomery D S, Afeyan B B 2016 Phys. Rev. E 93 043209Google Scholar
[23] Moody J D, Datte P, Krauter K, Bond E, Michel P A, Glenzer S H, Divol L, Niemann C, Suter L, Meezan N, MacGowan B J, Hibbard R, London R, Kilkenny J, Wallace R, Kline J L, Knittel K, Frieders G, Golick B, Ross G, Widmann K, Jackson J, Vernon S, Clancy T 2010 Rev. Sci. Instrum. 81 10D921Google Scholar
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峰值高度 中心波长 半高全宽 a/count x0/nm τ/nm P1 1976 1053.4 0.39 P2 2101 1053.3 4.4 P3 7243 1050.2 1.3 -
[1] Lindl J, Amendt P, Berger R L, Glendinning S G, Glenzer S H, Haan S W, Kauffman R L, Landen O L, Suter L J 2004 Phys. Plasmas 11 339Google Scholar
[2] Lindl J, Landen O, Edwards J, Moses E, Team N I C 2014 Phys. Plasmas 21 020501Google Scholar
[3] Cavailler C 2005 Plasma Phys. Controlled Fusion 47 B389Google Scholar
[4] Craxton R S, Anderson K S, Boehly T R, Goncharov V N, Harding D R, Knauer J P, McCrory R L, McKenty P W, Meyerhofer D D, Myatt J F, Schmitt A J, Sethian J D, Short R W, Skupsky S, Theobald W, Kruer W L, Tanaka K, Betti R, Collins T J B, Delettrez J A, Hu S X, Marozas J A, Maximov A V, Michel D T, Radha P B, Regan S P, Sangster T C, Seka W, Solodov A A, Soures J M, Stoeckl C, Zuegel J D 2015 Phys. Plasmas 22 110501Google Scholar
[5] Hao L, Yan R, Li J, Liu W D, Ren C 2017 Phys. Plasmas 24 062709Google Scholar
[6] Seaton A G, Arber T D 2020 Phys. Plasmas 27 082704Google Scholar
[7] MacGowan B J, Afeyan B B, Back C A, Berger R L, Bonnaud G, Casanova M, Cohen B I, Desenne D E, DuBois D F, Dulieu A G, Estabrook K G, Fernandez J C, Glenzer S H, Hinkel D E, Kaiser T B, Kalantar D H, Kauffman R L, Kirkwood R K, Kruer W L, Langdon A B, Lasinski B F, Montgomery D S, Moody J D, Munro D H, Powers L V, Rose H A, Rousseaux C, Turner R E, Wilde B H, Wilks S C, Williams E A 1996 Phys. Plasmas 3 2029Google Scholar
[8] Maximov V, Myatt J, Seka W, Short R W, Craxton R S 2004 Phys. Plasmas 11 2994Google Scholar
[9] 刘占军, 郝亮, 项江, 郑春阳 2012 61 115202Google Scholar
Liu Z J, Hao L, Xiang J, Zheng C Y 2012 Acta Phys. Sin 61 115202Google Scholar
[10] Kirkwood R K, Moody J D, Kline J, Dewald E, Glenzer S, Divol L, Michel P, Hinkel D, Berger R, Williams E, Milovich J, Yin L, Rose H, MacGowan B, Landen O, Rosen M, Lindl J 2013 Plasma Phys. Controlled Fusion 55 103001Google Scholar
[11] Zhao Y, Yu L L, Zheng J, Weng S M, Ren C, Liu C S, Sheng Z M 2015 Phys. Plasmas 22 052119Google Scholar
[12] Duluc M, Penninckx D, Loiseau P, Riazuelo G, Bourgeade A, Chatagnier A, D’humieres E 2019 Phys. Plasmas 26 042707Google Scholar
[13] Zhao Y, Sheng Z M, Weng S M, Ji S Z, Zhu J Q 2019 High Power Laser Sci. Eng. 7 e20Google Scholar
[14] Ji Y, Lian C W, Yan R, Ren C, Yang D, Wan Z H, Zhao B, Wang C, Fang Z H, Zheng J 2021 Matter Radiat. Extremes 6 015901Google Scholar
[15] Strickland D, Mourou G 1985 Opt. Commun. 56 219Google Scholar
[16] Danson C, Hillier D, Hopps N, Neely D 2015 High Power Laser Sci. Eng. 3 e3Google Scholar
[17] Baldis H A, Villeneuve D M, Fontaine B L, Enright G D, Labaune C, Baton S, Mounaix Ph, Pesme D, Casanova M, Rozmus W 1993 Phys. Fluids B 5 3319Google Scholar
[18] Baton S D, Rousseaux C, Mounaix P H, Labaune C, Fontaine B La, Pesme D, Renard N, Gary S, Louis-Jacquet M, Baldis H A 1994 Phys. Rev. E 49 R3602Google Scholar
[19] Rousseaux C, Malka G, Miquel J L, Amiranoff F, Baton S D, Mounaix Ph 1995 Phys. Rev. Lett. 74 4655Google Scholar
[20] Rousseaux C, Gremillet L, Casanova M, Loiseau P, Rabec Le Gloahec M, Baton S D, Amiranoff F, Adam J C, Héron A 2006 Phys. Rev. Lett. 97 015001Google Scholar
[21] Rousseaux C, Glize K, Baton S D, Lancia L, Bénisti D, Gremillet L 2016 Phys. Rev. Lett. 117 015002Google Scholar
[22] Rousseaux C, Baton S D, Bénisti D, Gremillet L, Loupias B, Philippe F, Tassin V, Amiranoff F, Kline J L, Montgomery D S, Afeyan B B 2016 Phys. Rev. E 93 043209Google Scholar
[23] Moody J D, Datte P, Krauter K, Bond E, Michel P A, Glenzer S H, Divol L, Niemann C, Suter L, Meezan N, MacGowan B J, Hibbard R, London R, Kilkenny J, Wallace R, Kline J L, Knittel K, Frieders G, Golick B, Ross G, Widmann K, Jackson J, Vernon S, Clancy T 2010 Rev. Sci. Instrum. 81 10D921Google Scholar
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