Relative carrier－envelope phase dependence of resonant propagation of two-colour femtosecond pulses in V-type atomic medium

doi:10.1088/1674-1056/19/6/064211

摘要/Abstract

摘要： Using numerical solution of the full Maxwell--Bloch equations, which is obtained by the finite-difference time-domain method and the iterative predictor--corrector method, we investigate the modulation effect of relative carrier--envelope phase (hereinafter referred to as the relative phase) on resonant propagation of two-colour femtosecond ultrashort laser pulses in a V-type three-level atomic medium. It is found that the pulse splitting occurs for a smaller value of relative phase; when the value of relative phase increases to a certain value, only the variation of pulse shape is present and the pulse splitting does not occur any more; moreover, when the value of relative phase is smaller, the pulse group velocity is larger. The relative phase also has an obvious effect on population and spectral property. Different population transfers can be realized by adjusting the value of relative phase. Generally speaking, for the pulses with smaller areas their spectral strengths and frequency ranges decrease obviously with the value of relative phase increasing; for the pulses with larger areas, with value of the relative phase increasing, their spectral strengths decrease remarkably but the relative strengths of the higher frequency components increase significantly, while the spectral frequency range is not varied evidently.

Abstract: Using numerical solution of the full Maxwell--Bloch equations, which is obtained by the finite-difference time-domain method and the iterative predictor--corrector method, we investigate the modulation effect of relative carrier--envelope phase (hereinafter referred to as the relative phase) on resonant propagation of two-colour femtosecond ultrashort laser pulses in a V-type three-level atomic medium. It is found that the pulse splitting occurs for a smaller value of relative phase; when the value of relative phase increases to a certain value, only the variation of pulse shape is present and the pulse splitting does not occur any more; moreover, when the value of relative phase is smaller, the pulse group velocity is larger. The relative phase also has an obvious effect on population and spectral property. Different population transfers can be realized by adjusting the value of relative phase. Generally speaking, for the pulses with smaller areas their spectral strengths and frequency ranges decrease obviously with the value of relative phase increasing; for the pulses with larger areas, with value of the relative phase increasing, their spectral strengths decrease remarkably but the relative strengths of the higher frequency components increase significantly, while the spectral frequency range is not varied evidently.

Key words: two-colour ultrashort pulses, relative carrier--envelope phase, resonant propagation, V-type three-level atomic medium

中图分类号: (Ultrafast processes; optical pulse generation and pulse compression)

42.65.Re

32.80.-t (Photoionization and excitation) 02.70.Bf (Finite-difference methods)

谭霞, 王振东, 王蕾, 樊锡君. Relative carrier－envelope phase dependence of resonant propagation of two-colour femtosecond pulses in V-type atomic medium[J]. 中国物理B, 2010, 19(6): 64211-064211.

Tan Xia(谭霞), Wang Zhen-Dong(王振东), Wang Lei(王蕾), and Fan Xi-Jun(樊锡君). Relative carrier－envelope phase dependence of resonant propagation of two-colour femtosecond pulses in V-type atomic medium[J]. Chin. Phys. B, 2010, 19(6): 64211-064211.

参考文献 29

[1]	Brabec T and Krausz F 2000 Rev. Mod. Phys. 72 545
[2]	Agostini P and DiMauro L 2004 Rep. Prog. Phys. 67 813
[3]	Winterfeldt C, Spielmann C and Gerber G 2008 Rev. Mod. Phys. 80 117
[4]	Feng Z H, Fu X Q, Zhang L F, Xu H W and Wen S C 2008 Acta Phys. Sin. 57 2253 (in Chinese)
[5]	Hu Q L, Liu S B and Li W 2008 Chin. Phys. B 17 1050
[6]	Peng Y J, Liu Y Q, Wang Y H, Zhang S P and Yang Y Q 2009 Acta Phys. Sin. 58 655 (in Chinese)
[7]	Lu D Q, Hu W, Qian L J and Fan D Y 2009 Acta Phys. Sin. 58 1655 (in Chinese)
[8]	Sun Y P, Liu J C and Wang C K 2009 Acta Phys. Sin. 58 3934 (in Chinese)
[9]	Quan W, Lin Z, Wu M, Kang H, Liu H, Liu X, Chen J, Liu J, He X T, Chen S G, Xiong H, Guo L, Xu H, Fu Y, Cheng Y and Xu Z Z 2009 Phys. Rev. Lett. 103 093001
[10]	Li L S, Feng G Y, Yang J, Zhou G R, Zhou H, Zhu Q H, Wang J J and Zhou S H 2009 Acta Phys. Sin. 58 7005 (in Chinese)
[11]	Yang W F, Song X H, Gong S Q, Cheng Y and Xu Z Z 2007 Phys. Rev. Lett. 99 133602
[12]	Zuo T and Bandrauk A D 1996 Phys. Rev. A 54 3254
[13]	Song X H, Gong S Q, Jin S Q and Xu Z Z 2003 Phys. Lett. A 319 150
[14]	Brown A and Meath W J 2002 Phys. Rev. A 65 063401
[15]	Avetissian H K, Avchyan B R and Mkrtchian G F 2006 Phys. Rev. A 74 063413
[16]	Xia K Y, Niu Y P, Li C F and Gong S Q 2007 Phys. Lett. A 361 173
[17]	Song X H, Gong S Q, Jin S Q and Xu Z Z 2004 Phys. Rev. A 69 015801
[18]	Zhang C L, Qi Y Y and Liu X S 2007 Acta Phys. Sin. 56 774 (in Chinese)
[19]	Liu C P, Gong S Q, Li R X and Xu Z Z 2004 Phys. Rev. A 69 023406
[20]	Zuo T and Bandrauk A D 1995 Phys. Rev. A 51 3991
[21]	Serrat C 2005 Phys. Rev. A 72 023808
[22]	Serrat C 2005 Phys. Rev. A 72 051803
[23]	Loiko Y and Serrat C 2006 Phys. Rev. A 73 063809
[24]	Yee K S 1966 IEEE Trans. Antennas Propag. 14 302
[25]	Ziolkowski R W, Arnold J M and Gogny D M 1995 Phys. Rev. A 52 3082
[26]	McCall S L and Hahn E L 1967 Phys. Rev. Lett. 18 908
[27]	Lamb Jr G L 1971 Rev. Mod. Phys. 43 99
[28]	Engelen R J P, Sugimot Y, Watanabe Y, Korterik J P, Ikeda N, van Hulst N F, Asakawa K and Kuipers L 2006 Opt. Express 14 1658
[29]	Tarasishin A V, Magnitskii S A, Shuaev V A and Zheltikov A 2001 Opt. Express 8 452