Selection of quantum path in high-order harmonics and isolated sub-100 attosecond generation in few-cycle spatially inhomogeneous laser fields

doi:10.1088/1674-1056/24/2/023201

Abstract We theoretically study the selection of the quantum path in high-order harmonics (HHG) and isolated attosecond pulse generation from a one-dimensional (1D) model of a H₂⁺ molecule in few-cycle inhomogeneous laser fields. We show that the inhomogeneity of the laser fields play an important role in the HHG process. The cutoff of the harmonics can be extended remarkably, and the harmonic spectrum becomes smooth and has fewer modulations. We investigate the time-frequency profile of the time-dependent dipole, which shows that the short quantum path is enhanced and the long quantum path disappears in spatially inhomogeneous fields. The semi-classical three-step model is also applied to illustrate the physical mechanism of HHG. The influence of driving field carrier-envelop phase (CEP) on HHG is also discussed. By superposing a series of properly selected harmonics, an isolated attosecond pulse (IAP) with duration 53 as can be obtained by a 15-fs, 1600-nm laser pulse with the parameter ε=0.0013 (ε is the parameter that determines the order of inhomogeneity of the laser field).

Keywords: high-order harmonic generation isolated attosecond pulse spatially inhomogeneous fields

Received: 13 August 2014
Revised: 23 September 2014
Accepted manuscript online:

PACS:	32.80.Rm	(Multiphoton ionization and excitation to highly excited states)
	42.65.Ky	(Frequency conversion; harmonic generation, including higher-order harmonic generation)
	78.67.Bf	(Nanocrystals, nanoparticles, and nanoclusters)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11174108, 11104108, and 11271158).

Corresponding Authors: Guo Jing, Liu Xue-Shen
E-mail: gjing@jlu.edu.cn;liuxs@jlu.edu.cn

Cite this article:

Ge Xin-Lei (葛鑫磊), Du Hui (杜慧), Wang Qun (王群), Guo Jing (郭静), Liu Xue-Shen (刘学深) Selection of quantum path in high-order harmonics and isolated sub-100 attosecond generation in few-cycle spatially inhomogeneous laser fields 2015 Chin. Phys. B 24 023201

[1]	Popmintchev T et al. 2012 Science 336 1287
[2]	P M Paul et al. 2001 Science 292 1689
[3]	Föhlish A, Feulner P, Hennies F, Fink A, Menzel D, Sanchez-Portal D, Echenique P M and Wurth W 2005 Nature 436 373
[4]	Lu R and Chu T 2012 Phys. Lett. A 376 1523
[5]	Corkum P B 1993 Phys. Rev. Lett. 71 1994
[6]	Lewenstein M, Balcou P, Ivanov M Y, L'Huillier A and Corkum P B 1994 Phys. Rev. A 49 2117
[7]	Schafer K J, Yang B, DiMauro L F and Kulander K C 1993 Phys. Rev. Lett. 70 1599
[8]	Jia Z M, Zeng Z N, Li R X and Xu Z Z 2014 Chin. Phys. B 23 083201
[9]	Zhai Z, Yu R F, Liu X S and Yang Y J 2008 Phys. Rev. A 78 041402
[10]	Zou P, Li R X, Zeng Z N, Xiong H, Liu P, Leng Y X, Fan P Z and Xu Z Z 2010 Chin. Phys. B 19 019501
[11]	Wu J, Zhang G T, Xia C L and Liu X S 2010 Phys. Rev. A 82 013411
[12]	Husakou A, Im S J and Herrmann J 2011 Phys. Rev. A 83 043839
[13]	Yavuz I, Bleda E A, Altun Z and Topcu T 2012 Phys. Rev. A 85 013416
[14]	He L, Wang Z, Li Y, Zhang Q, Lan P and Lu P 2013 Phys. Rev. A 88 053404
[15]	Pérez-Hernández J A, Ciappina M F, Lewenstein M, Roso L and Zaïr A 2013 Phys. Rev. Lett. 110 053001
[16]	Luo J, Li Y, Wang Z, Zhang Q and Lu P 2013 J. Phys. B: At. Mol. Opt. Phys. 46 145602
[17]	Luo J, Li Y, Wang Z, He L, Zhang Q and Lu P 2014 Phys. Rev. A 89 023405
[18]	Zhang C, Liu C and Xu Z 2013 Phys. Rev. A 88 035805
[19]	Ciappina M F, Biegert J, Quidant R and Lewenstein M 2012 Phys. Rev. A 85 033828
[20]	Süßmann F and Kling M F 2011 Phys. Rev. B 84 121406
[21]	Herink G, Solli D R, Guld M and Ropers C 2012 Nature 483 190
[22]	Park I Y, Kim S, Choi J, Lee D H, Kim Y J, Kling M F, Stockman M I and Kim S W 2011 Nat. Photon. 5 677
[23]	Ge X L, Wang T, Guo J and Liu X S 2014 Phys. Rev. A 89 023424
[24]	Feit M D, Fleck J A Jr and Steiger A 1982 J. Comput. Phys. 47 412
[25]	Feit M D and Fleck J A Jr 1983 J. Chem. Phys 78 301
[26]	Wang Z, Lan P, Luo J, He L, Zhang Q and Lu P 2013 Phys. Rev. A 88 063838
[27]	Ciappina M F, Aćimović Srdjan S, Shaaran T, Biegert J, Quidant R and Lewenstein M 2012 Opt. Express 20 26261
[28]	Antoine P, Piraux B and Maquet A 1995 Phys. Rev. A 51 R1750

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Selection of quantum path in high-order harmonics and isolated sub-100 attosecond generation in few-cycle spatially inhomogeneous laser fields

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