Low temperature enhancement of alignment-induced spectral broadening of femtosecond laser pulses

doi:10.1088/1674-1056/23/1/014201

中国物理B ›› 2014, Vol. 23 ›› Issue (1): 14201-014201.doi: 10.1088/1674-1056/23/1/014201

• RAPID COMMUNICATION • 上一篇下一篇

Low temperature enhancement of alignment-induced spectral broadening of femtosecond laser pulses

王翡, 蒋红兵, 龚旗煌

Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China

收稿日期:2013-08-21 修回日期:2013-10-10 出版日期:2013-11-12 发布日期:2013-11-12
基金资助:
Project supported by the National Natural Science Foundation of China (Grants Nos. 11074014 and 11121091).

Low temperature enhancement of alignment-induced spectral broadening of femtosecond laser pulses

Wang Fei (王翡), Jiang Hong-Bing (蒋红兵), Gong Qi-Huang (龚旗煌)

Department of Physics & State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871, China

Received:2013-08-21 Revised:2013-10-10 Online:2013-11-12 Published:2013-11-12
Contact: Jiang Hong-Bing E-mail:hbjiang@pku.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grants Nos. 11074014 and 11121091).

摘要/Abstract

摘要： The propagation of femtosecond laser pulses in N₂-filled hollow fibers is studied both theoretically and experimentally. The laser pulse aligns the N₂ molecules and changes the refractive index, which meanwhile modulates the spectrum of the pulse in turn. The dependence of the spectral modulation on the gas temperature is investigated. We find that both spectral broadening and frequency red-shift are enhanced at low temperature. The degree of enhancement is found to be dependent on the pulse duration. Based on our findings, we propose a method for femtosecond pulse spectral broadening and few-cycle pulse generation via the molecular alignment.

关键词: field-free molecular alignment, femtosecond phenomenon, ultrafast nonlinear optics

Abstract: The propagation of femtosecond laser pulses in N₂-filled hollow fibers is studied both theoretically and experimentally. The laser pulse aligns the N₂ molecules and changes the refractive index, which meanwhile modulates the spectrum of the pulse in turn. The dependence of the spectral modulation on the gas temperature is investigated. We find that both spectral broadening and frequency red-shift are enhanced at low temperature. The degree of enhancement is found to be dependent on the pulse duration. Based on our findings, we propose a method for femtosecond pulse spectral broadening and few-cycle pulse generation via the molecular alignment.

Key words: field-free molecular alignment, femtosecond phenomenon, ultrafast nonlinear optics

中图分类号: (Nonlinear optics)

42.65.-k

王翡, 蒋红兵, 龚旗煌. Low temperature enhancement of alignment-induced spectral broadening of femtosecond laser pulses[J]. 中国物理B, 2014, 23(1): 14201-014201.

Wang Fei (王翡), Jiang Hong-Bing (蒋红兵), Gong Qi-Huang (龚旗煌). Low temperature enhancement of alignment-induced spectral broadening of femtosecond laser pulses[J]. Chin. Phys. B, 2014, 23(1): 14201-014201.

参考文献 29

[1]	Lin G H, Heritage J P, Gustafson T K, Ghiao R Y and McTague J P 1976 Phys. Rev. A 13 813
[2]	Ripoche J, Grillon G, Prade B, France M, Nibbering E, Lange R and Mysyrowicz A 1997 Opt. Commun. 135 310
[3]	Friedrich B and Herschbach D 1995 Phys. Rev. Lett. 74 4623
[4]	Seideman T 1995 J. Chem. Phys. 103 7887
[5]	Rosca-Pruna F and Vrakking M J J 2001 Phys. Rev. Lett. 87 153902
[6]	Loriot V, Tzallas P, Benis E P, Hertz E, Lavorel B, Charalambidis D and Faucher O 2007 J. Phys. B 40 2503
[7]	Rouzée A, Guérin S, Faucher O and Lavorel B 2008 Phys. Rev. A 77 043412
[8]	Nibbering E T J, Grillon G, Franco M A, Prade B S and Mysyrowicz A 1997 J. Opt. Soc. Am. B 14 650
[9]	Bartels R A, Weinacht T C, Wagner N, Baertschy M, Greene C H, Murnane M M and Kapteyn H C 2001 Phys. Rev. Lett. 88 013903
[10]	Zhong F, Jiang H and Gong Q 2009 Opt. Express 17 1472
[11]	Wang F, Jiang H and Gong Q 2012 J. Opt. Soc. Am. B 29 232
[12]	Wu J, Cai H, Peng Y and Zeng H 2009 Phys. Rev. A 79 041404
[13]	Wu J, Cai H, Couairon A and Zeng H 2009 Phys. Rev. A 79 063812
[14]	Wu J, Cai H, Couairon A and Zeng H 2009 Phys. Rev. A 80 013828
[15]	Wu J, Cai H, Peng Y and Zeng H 2009 Opt. Express 17 5822
[16]	Wu J, Cai H, Zeng H and Couairon A 2008 Opt. Lett. 33 2593
[17]	Nisoli M, Stagira S, Silvestri S De, Svelto O, Sartania S, Cheng Z, Lenzner M, Spielmann Ch and Krausz F 1997 Appl. Phys. B 65 189
[18]	Litvinyuk IV, Lee K F, Dooley P W, Rayner D M, Villeneuve D M and Corkum P B 2003 Phys. Rev. Lett. 90 233003
[19]	Li Y, Yang S P, Jia X Y and Chen J 2010 Chin. Phys. B 19 043303
[20]	Velotta R, Hay N, Mason M B, Castillejo M and Marangos J P 2001 Phys. Rev. Lett. 87 183901
[21]	Tong A H, Liao Q, Zhou Y M and Lu P X 2011 Acta Phys. Sin. 60 043301 (in Chinese)
[22]	Wang Y Q, Chen D Y, Xia Y Q, Fan R W and Lu F M 2010 Chin. Phys. B 19 023203
[23]	Masihzadeh O, Baertschy M and Bartels R A 2006 Opt. Express 14 2520
[24]	Wang F, Jiang H B and Gong Q H 2012 Chin. Phys. B 21 054212
[25]	Hentschel M, Cheng Z, Krausz F and Spielmann C 2000 Appl. Phys. B 70 S161
[26]	Nisoli M, Silvestri S D and Svelto O 1996 Appl. Phys. Lett. 68 2793
[27]	Xu N, Wu C, Huang J, Wu Z, Liang Q, Yang H and Gong Q 2006 Opt. Express 14 4992
[28]	Kumarappan V, Bisgaard C Z, Viftrup S S, Holmegaard L and Stapelfeldt H 2006 J. Chem. Phys. 125 194309
[29]	Yoshii K, Miyaji G and Miyazaki K 2009 Opt. Lett. 34 1651

Low temperature enhancement of alignment-induced spectral broadening of femtosecond laser pulses

Low temperature enhancement of alignment-induced spectral broadening of femtosecond laser pulses

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 29

相关文章 1

Metrics

本文评价

推荐阅读 0