饱和功率密度下线性啁啾对交叉偏振波输出特性的影响

秦爽; 王兆华; 王羡之; 何会军; 沈忠伟; 魏志义

doi:10.7498/aps.66.094206

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摘要

交叉偏振波（XPW）技术是一种基于具有各向异性特征的三阶非线性晶体的非线性滤波技术，由于结构简单，稳定可靠，是超强超快激光领域提高时域对比度、压缩脉宽的有效手段之一.在实验中发现，XPW的输出特性受驱动脉冲特性的直接影响，通过理论计算得到了XPW的脉宽和光谱宽度与驱动脉冲的啁啾特性关系，同时利用声光可编程色散滤波器设计实验对理论计算进行了验证.结果表明：实验结果很好地反映了理论计算得出的结论，同时在饱和功率密度条件下，还表现出了一些理论计算没有反映出的新现象，即XPW的光谱展宽突破了驱动脉冲宽度3倍的限制，最终脉宽也能够压缩至小于入射脉宽的1/3；此外对于相反线性啁啾的驱动脉冲所产生的XPW信号，其在光谱形状上有明显的偏移差异，同时输出效率也有所不同.最后对这些新现象进行了进一步的分析和理论解释.

关键词:

作者及机构信息

1.
中国科学院物理研究所, 北京凝聚态物理国家实验室, 北京 100190;

2.
北京信息科技大学仪器科学与光电工程学院, 北京 100192

通信作者: 魏志义, zywei@iphy.ac.cn

基金项目: 国家重点基础研究发展计划（批准号：2013CB922402）、国家重大科学仪器设备开发专项基金（批准号：2012YQ120047）、国家自然科学基金（批准号：11434016）和中国科学院战略性先导科技专项（批准号：XDB16030200）资助的课题.

参考文献

[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 物理学报 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 物理学报 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]

施引文献

[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 物理学报 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 物理学报 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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饱和功率密度下线性啁啾对交叉偏振波输出特性的影响

1. 中国科学院物理研究所, 北京凝聚态物理国家实验室, 北京 100190;

2. 北京信息科技大学仪器科学与光电工程学院, 北京 100192

通信作者: 魏志义, zywei@iphy.ac.cn

基金项目:

国家重点基础研究发展计划（批准号：2013CB922402）、国家重大科学仪器设备开发专项基金（批准号：2012YQ120047）、国家自然科学基金（批准号：11434016）和中国科学院战略性先导科技专项（批准号：XDB16030200）资助的课题.

收稿日期: 2017-03-19

修回日期: 2017-03-30

刊出日期: 2017-05-05

摘要: 交叉偏振波（XPW）技术是一种基于具有各向异性特征的三阶非线性晶体的非线性滤波技术，由于结构简单，稳定可靠，是超强超快激光领域提高时域对比度、压缩脉宽的有效手段之一.在实验中发现，XPW的输出特性受驱动脉冲特性的直接影响，通过理论计算得到了XPW的脉宽和光谱宽度与驱动脉冲的啁啾特性关系，同时利用声光可编程色散滤波器设计实验对理论计算进行了验证.结果表明：实验结果很好地反映了理论计算得出的结论，同时在饱和功率密度条件下，还表现出了一些理论计算没有反映出的新现象，即XPW的光谱展宽突破了驱动脉冲宽度3倍的限制，最终脉宽也能够压缩至小于入射脉宽的1/3；此外对于相反线性啁啾的驱动脉冲所产生的XPW信号，其在光谱形状上有明显的偏移差异，同时输出效率也有所不同.最后对这些新现象进行了进一步的分析和理论解释.

关键词:

Influence of linear chirp on the output characteristics of cross polarized wave with saturated power density

1.
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;

2.
School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing 100192, China

Fund Project:

Project supported by the National Basic Research Program of China (Grant No. 2013CB922402), the Special Foundation of State Major Scientific Instrument and Equipment Development of China (Grant No. 2012YQ120047), the National Natural Science Foundation of China (Grant No. 11434016), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB16030200).

Received Date: 19 March 2017

Accepted Date: 30 March 2017

Published Online: 05 May 2017

Abstract: 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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