| ATOMIC AND MOLECULAR PHYSICS |
|
|
|
|
Asymmetry of Photodetachment of F− by Few-Cycle Infrared Laser Fields: Laser-Intensity Effects |
| BAI Li-Hua**, HOU Lu-Qiang, CUI Ting-Ting, LIU Yu-Heng , WANG Yan, ZHANG Hui-Fang, DENG Dong-Mei
|
Department of Physics, Shanghai University, Shanghai 200444
|
|
| Cite this article: |
|
BAI Li-Hua, HOU Lu-Qiang, CUI Ting-Ting et al 2011 Chin. Phys. Lett. 28 063202 |
|
|
|
|
Abstract Asymmetry of the photodetachment of F− by few-cycle circularly polarized infrared laser fields is studied by using a nonperturbative quantum scattering theory. The asymmetry of photoelectrons emitted to a pair of two opposite directions for low laser peak intensities is found and the dependence of the asymmetry on the laser peak intensity is investigated. It is found that the asymmetry degree varies with the carrier-envelope (CE) phase as a sine-like pattern. The asymmetry degree, the value of the maximal asymmetry degree and the value of the CE phase corresponding to the maximal asymmetry degree vary with the laser peak intensity dramatically. At higher laser intensities, the asymmetry is still distinctive for relatively-long few-cycle pulses. It provides a possible means to measure the CE phase of laser pulses at lower intensities.
|
| Keywords:
32.80.Rm
42.50.Hz
42.50.Vk
|
|
|
Received: 07 September 2010
Published: 29 May 2011
|
|
| PACS: |
32.80.Rm
|
(Multiphoton ionization and excitation to highly excited states)
|
| |
42.50.Hz
|
(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
|
| |
42.50.Vk
|
|
|
|
|
|
|
[1] Steimeyer G, Sutter D H, Gallmann L, Matuschek N and Keller U 1999 Science 286 1507
[2] Nisoli M, Silvestri S D, Svelto O, Szipöcs R, Ferencz K, Spielmann C, Sartania S and Krausz F 1997 Opt. Lett. 22 522
[3] Brabec T and Krausz F 2000 Rev. Mod. Phys. 72 545
[4] Sansone G, Benedetti E et al 2006 Science 314 443
[5] Paulus G G, Lindner F, Walther H, Baltuška A, Goulielmakis E, Lezius M and Krausz F 2003 Phys. Rev. Lett. 91 253004
[6] Paulus G G, Grasbon F, Walther H, Villoresi P, Nisoli M, Stagira S, Priori E and Silvestri S D 2001 Nature 414 182
[7] Zhang J T and Xu Z Z 2003 Phys. Rev. A 68 013402
[8] Hu S X and Collins L A 2004 Phys. Rev. A 70 013407
[9] Zhang J T, Feng X L and Xu Z Z 2004 Phys. Rev. A 69 043409
[10] Milosevic D B, Paulus G G and Becker W 2002 Phys. Rev. Lett. 89 153001
[11] Bivona S, Burlon R and Leone C 2006 Opt. Express 14 12576
[12] Reichle R, Helm H and Kiyan I 2001 Phys. Rev. Lett. 87 243001
[13] Guo D S, Aberg T and Crasemann B 1989 Phys. Rev. A 40 4997
[14] Gürtler A, Robicheaux F, Zande W J and Noordam L D 2004 Phys. Rev. Lett. 92 033002
[15] Kiyan I and Helm H 2003 Phys. Rev. Lett. 90 183001
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
