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A scheme to efficiently generate a broadband short attosecond pulse is presented by using intense multi-cycle 800 nm laser in combination with its 27th harmonic (H27) laser pulse. It is shown that the electronic dynamics can be efficiently controlled by the 1 fs H27 laser. Setting the H27 laser to the multi-cycle 800 nm laser at a proper time, we can control most of the ionizations to occur at half the optical cycle, and the short quantum path can be picked out, thus the harmonic plateau is heightened four orders of magnitude compared with the case of using the fundamental laser alone. Furthermore, a harmonic supercontinuum spectrum with a bandwidth of 108 eV is produced. By superposing the 140th-210th harmonics in the continuous region, an intense isolated pulse with the duration of 39 as is straightforwardly obtained. Using this method, the bandwidth of the continuum spectrum is 2 times wider, the intensity of the attosecond pulse is greater, and the duration of the attosecond pulse is shorter, in contrast to the scheme proposed in Ref. [7], which added the ultraviolet attosecond pulse to a few-cycle 800 nm laser.
[1] Kienberger R, Goulielmakis E, Uiberacker M, Baltuska A, Yakovlev V, Bammer F, Scrinzi A, Westerwalbesloh Th, Kleineberg U, Heinzmann U, Drescher M, Krausz F 2004 Nature 427 817
[2] Mairesse Y, Bohan A D, Frasinski L J, Merdji H, Ding L C, Monchicourt P, Breger P, Kovacev M, Auguste T, Carre B, Muller H G, Agostini P, Salieres P 2004 Phys.Rev.Lett. 93 163901
[3] Papadogiannis N A, witzel B, Kalpouzos C, Charalambids D 1999 Phys. Rev. Lett. 83 4289
[4] Hentschel M, Kienberger R 2001 Nature 414 509
[5] Sansone G, Benedetti E, Calegari F, Vozzi C, Avaldi L, Flammini R, Poletto L, Villoresi P, Altucci C, Velotta R, Stagira S, De Silvestri S, Nisoli M 2006 Science 314 443
[6] Corkum P B 1993 Phys. Rev. Lett. 71 1994
[7] Lan P, Lu P, Cao W, Wang X 2007 Phys. Rev. A 76 043808
[8] Hong W, Li Y, Lu P, Lan P, Zhang Q, Wang X 2008 J. Opt. Soc. Am. B 25 1684
[9] Zhao S F, Zhou X X, Li P C, Chen Z 2008 Phys. Rev. A 78 063404
[10] Liu S, Chen G, Chen J G, Zhu Q R 2009 Acta Phys. Sin. 58 1574 (in Chinese) [刘 硕、陈 高、陈基根、朱颀人 2009 58 1574]
[11] Eberly J H, Su Q, Javanainen J 1989 Phys. Rev. Lett. 62 881
[12] Chen J G, Chen G, Chi F P, Yang Y J 2010 Acta Phys. Sin. 59 236 (in Chinese) [陈基根、陈 高、池方萍、杨玉军 2010 59 236]
[13] Chen J G, Chen G, Zeng S L, Yang Y J, Zhu Q R 2008 Acta Phys. Sin. 57 4104 (in Chinese) [陈基根、陈 高、曾思良、杨玉军、朱颀人 2008 57 4104]
[14] Ye X L, Zhou X X, Zhao S F, Li P C 2009 Acta Phys. Sin. 58 1579 (in Chinese) [叶小亮、周效信、赵松峰、李鹏程 2009 58 1579]
[15] Keldysh L V 1965 Sov. Phys. JETP 20 1307
[16] Yergeau F, Petite G, Agostini P 1986 J. Phys. B 19 L663
[17] Mashiko H, Suda A, Midorikawa K 2004 Opt. Lett. 29 1927
[18] Ishikawa K 2003 Phys. Rev. Lett. 91 043002
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[1] Kienberger R, Goulielmakis E, Uiberacker M, Baltuska A, Yakovlev V, Bammer F, Scrinzi A, Westerwalbesloh Th, Kleineberg U, Heinzmann U, Drescher M, Krausz F 2004 Nature 427 817
[2] Mairesse Y, Bohan A D, Frasinski L J, Merdji H, Ding L C, Monchicourt P, Breger P, Kovacev M, Auguste T, Carre B, Muller H G, Agostini P, Salieres P 2004 Phys.Rev.Lett. 93 163901
[3] Papadogiannis N A, witzel B, Kalpouzos C, Charalambids D 1999 Phys. Rev. Lett. 83 4289
[4] Hentschel M, Kienberger R 2001 Nature 414 509
[5] Sansone G, Benedetti E, Calegari F, Vozzi C, Avaldi L, Flammini R, Poletto L, Villoresi P, Altucci C, Velotta R, Stagira S, De Silvestri S, Nisoli M 2006 Science 314 443
[6] Corkum P B 1993 Phys. Rev. Lett. 71 1994
[7] Lan P, Lu P, Cao W, Wang X 2007 Phys. Rev. A 76 043808
[8] Hong W, Li Y, Lu P, Lan P, Zhang Q, Wang X 2008 J. Opt. Soc. Am. B 25 1684
[9] Zhao S F, Zhou X X, Li P C, Chen Z 2008 Phys. Rev. A 78 063404
[10] Liu S, Chen G, Chen J G, Zhu Q R 2009 Acta Phys. Sin. 58 1574 (in Chinese) [刘 硕、陈 高、陈基根、朱颀人 2009 58 1574]
[11] Eberly J H, Su Q, Javanainen J 1989 Phys. Rev. Lett. 62 881
[12] Chen J G, Chen G, Chi F P, Yang Y J 2010 Acta Phys. Sin. 59 236 (in Chinese) [陈基根、陈 高、池方萍、杨玉军 2010 59 236]
[13] Chen J G, Chen G, Zeng S L, Yang Y J, Zhu Q R 2008 Acta Phys. Sin. 57 4104 (in Chinese) [陈基根、陈 高、曾思良、杨玉军、朱颀人 2008 57 4104]
[14] Ye X L, Zhou X X, Zhao S F, Li P C 2009 Acta Phys. Sin. 58 1579 (in Chinese) [叶小亮、周效信、赵松峰、李鹏程 2009 58 1579]
[15] Keldysh L V 1965 Sov. Phys. JETP 20 1307
[16] Yergeau F, Petite G, Agostini P 1986 J. Phys. B 19 L663
[17] Mashiko H, Suda A, Midorikawa K 2004 Opt. Lett. 29 1927
[18] Ishikawa K 2003 Phys. Rev. Lett. 91 043002
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