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Ultra-short and ultra-intense laser is one of the hottest research spot of laser technology and strong field physics, due to its challenging and the frontier application research. As the key specification of ultrafast ultrahigh intensity laser pulse, the contrast ratio is very influential on the effect of laser-matter interaction. To perform the laser-matter interaction experiments at a high power level, the contrast is required to be as high as 1010 to prevent preplasma dynamics. To solve these problems, one has proposed many methods to improve the contrast of ultrafast laser, such as using the saturable absorbers, double chirped pulse amplification, plasma mirrors and the cross-polarized wave (XPW) generation. The XPW technology can not only enhance the contrast of the pulse by 3-4 orders of magnitude without introducing any space dispersion, but also extend the output spectrum to support shorter pulse duration. The XPW is a nonlinear filter technique in third-order nonlinear crystal with anisotropic susceptibility. Because of its simple and all-solid-state structure, the XPW technique has become one of the most effective methods to enhance the temporal pulse contrast and deliver shorter pulse duration in the field of high peak-power ultrafast lasers. This method has been used in many large laser facilities under construction or upgrades, such as the Apollon and ELI, the contrast ratio as high as 1010 has been achieved. It is known that the conversion efficiency and spectral characteristics of XPW have a strong dependence on the spatial and temporal magnitudes of the input driving pulse. In our experiment, it is found that the various changes of the driven pulse properties have different influences on the characteristics of XPW pulses. The relationship between the linear dispersion of driven pulse and temporal property of XPW is investigated theoretically. In addition, an experiment on verifying the theory is conducted by taking advantage of a programmable acousto-optic dispersion filter. The experimental results fit well to the theoretical results while some new phenomena emerge when the intensity in the BaF2 crystal reaches a saturation threshold. The spectral broadening capability of XPW becomes stronger and exceeds a theoretical upper limit. The pulse width can also be compressed to shorter than the theoretical limit. It is found that there are significant differences in spectral shape and conversion efficiency between the XPW signals by applying the opposite linear chirps to the driving pulse. A further analysis and theoretical explanation of these new phenomena are also presented.
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Keywords:
- cross-polarized wave /
- spectral phase /
- linear chirp /
- spectrum broadening
[1] Strickland D, Mourou G 1985 Opt. Commun. 56 219
[2] Gerstner E 2007 Nature 446 16
[3] Mourou G, Korn G, Sandner W, Collier J K 2011 ELI-Extreme Light Infrastructure Science and Technology with Ultra-Intense Lasers (Berlin: THOSS Media GmbH) p118
[4] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[5] Itatani J, Faure J, Nantel M, Mourou G, Watanabe S 1998 Opt. Commun. 148 70
[6] Thaury C, Quere F, Geindre J P, Levy A, Ceccotti T, Monot P, Marjoribanks R 2007 Nat. Phys. 3 424
[7] Jullien A, Albert O, Burgy F, Hamoniaux G, Rousseau J P, Chambaret J P, Saltiel S M 2005 Opt. Lett. 30 920
[8] Jullien A, Canova L, Albert O, Boschetto D, Antonucci L, Cha Y H, Kourtev S 2007 Appl. Phys. B 87 595
[9] Wang J Z, Huang Y S, Xu Y, Li Y Y, Lu X M, Leng Y X 2012 Acta Phys. Sin. 61 094214 (in Chinese) [王建州, 黄延穗, 许毅, 李妍妍, 陆效明, 冷雨欣 2012 61 094214]
[10] Ramirez L P, Papadopoulos D N, Pellegrina A, Georges P, Druon F, Monot P, Lopez-Martens R 2011 Opt. Express 19 93
[11] Chalus O, Pellegrina A, Ricaud S, Chalus O, Pellegrina A, Matras G, Jougla P 2016 SPIE LASE. International Society for Optics and Photonics San Francisco, USA, February 15-18, 2016 p972611
[12] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[13] Tournois P 1997 Opt. Commun. 140 245
[14] Buberl T, Alismail A, Wang H, Karpowicz N, Fattahi H 2016 Opt. Express 24 10286
[15] Minkovski N, Saltiel S M, Petrov G I, Albert O, Etchepare J 2002 Opt. Lett. 27 2025
[16] Diels J C, Rudolph W 2006 Ultrashort Laser Pulse Phenomena (New York: Academic Press) p11
[17] Jullien A, Canova L, Albert O, Boschetto D, Antonucci L, Cha Y H, Kourtev S 2007 Appl. Phys. B 87 595
[18] Cambronero-Lpez F, Bao-Varela C, Ruiz C 2016 J. Opt. Soc. Am. B 33 1740
[19] Iliev M, Meier A K, Greco M, Durfee C G 2015 Appl. Opt. 54 219
[20] Jullien A, Kourtev S, Albert O, Cheriaux G, Etchepare J, Minkovski N, Saltiel S M 2006 Appl. Phys. B 84 409
[21] Li G, Liu H J, Lu F, Wen X L, He Y L, Zhang F Q, Dai Z H 2015 Acta Phys. Sin. 64 020602 (in Chinese) [李纲, 刘红杰, 卢峰, 温贤伦, 何颖玲, 张发强, 戴增海 2015 64 020602]
[22] Zhang Z 2011 Femtosecond Laser Technology (Beijing: Science Press) p17 (in Chinese) [张志刚 2011 飞秒激光技术 (北京: 科学出版社) 第17页]
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[1] Strickland D, Mourou G 1985 Opt. Commun. 56 219
[2] Gerstner E 2007 Nature 446 16
[3] Mourou G, Korn G, Sandner W, Collier J K 2011 ELI-Extreme Light Infrastructure Science and Technology with Ultra-Intense Lasers (Berlin: THOSS Media GmbH) p118
[4] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[5] Itatani J, Faure J, Nantel M, Mourou G, Watanabe S 1998 Opt. Commun. 148 70
[6] Thaury C, Quere F, Geindre J P, Levy A, Ceccotti T, Monot P, Marjoribanks R 2007 Nat. Phys. 3 424
[7] Jullien A, Albert O, Burgy F, Hamoniaux G, Rousseau J P, Chambaret J P, Saltiel S M 2005 Opt. Lett. 30 920
[8] Jullien A, Canova L, Albert O, Boschetto D, Antonucci L, Cha Y H, Kourtev S 2007 Appl. Phys. B 87 595
[9] Wang J Z, Huang Y S, Xu Y, Li Y Y, Lu X M, Leng Y X 2012 Acta Phys. Sin. 61 094214 (in Chinese) [王建州, 黄延穗, 许毅, 李妍妍, 陆效明, 冷雨欣 2012 61 094214]
[10] Ramirez L P, Papadopoulos D N, Pellegrina A, Georges P, Druon F, Monot P, Lopez-Martens R 2011 Opt. Express 19 93
[11] Chalus O, Pellegrina A, Ricaud S, Chalus O, Pellegrina A, Matras G, Jougla P 2016 SPIE LASE. International Society for Optics and Photonics San Francisco, USA, February 15-18, 2016 p972611
[12] Chvykov V, Rousseau P, Reed S, Kalinchenko G, Yanovsky V 2006 Opt. Lett. 31 1456
[13] Tournois P 1997 Opt. Commun. 140 245
[14] Buberl T, Alismail A, Wang H, Karpowicz N, Fattahi H 2016 Opt. Express 24 10286
[15] Minkovski N, Saltiel S M, Petrov G I, Albert O, Etchepare J 2002 Opt. Lett. 27 2025
[16] Diels J C, Rudolph W 2006 Ultrashort Laser Pulse Phenomena (New York: Academic Press) p11
[17] Jullien A, Canova L, Albert O, Boschetto D, Antonucci L, Cha Y H, Kourtev S 2007 Appl. Phys. B 87 595
[18] Cambronero-Lpez F, Bao-Varela C, Ruiz C 2016 J. Opt. Soc. Am. B 33 1740
[19] Iliev M, Meier A K, Greco M, Durfee C G 2015 Appl. Opt. 54 219
[20] Jullien A, Kourtev S, Albert O, Cheriaux G, Etchepare J, Minkovski N, Saltiel S M 2006 Appl. Phys. B 84 409
[21] Li G, Liu H J, Lu F, Wen X L, He Y L, Zhang F Q, Dai Z H 2015 Acta Phys. Sin. 64 020602 (in Chinese) [李纲, 刘红杰, 卢峰, 温贤伦, 何颖玲, 张发强, 戴增海 2015 64 020602]
[22] Zhang Z 2011 Femtosecond Laser Technology (Beijing: Science Press) p17 (in Chinese) [张志刚 2011 飞秒激光技术 (北京: 科学出版社) 第17页]
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