Coulomb explosion of N2 using intense 10-and 40-fs laser pulses -: art. no. 021403

被引:48
作者
Baldit, E [1 ]
Saugout, S [1 ]
Cornaggia, C [1 ]
机构
[1] CEA Saclay, Direct Sci Mat, Serv Photons Atomes & Mol, F-91191 Gif Sur Yvette, France
来源
PHYSICAL REVIEW A | 2005年 / 71卷 / 02期
关键词
D O I
10.1103/PhysRevA.71.021403
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Intense laser pulse duration effects in the Coulomb explosion of the N-2 molecule are studied using 10- and 40-fs laser pulses in the 10(14)-10(16) W cm(-2) intensity range. At 10 fs, no significant molecular stretching is observed during multi-ionization events up to the N2++N2+ fragmentation channel. Kinetic energy releases are larger and fragmentation yields are lower at 10 fs than at 40 fs due to the 1/R scaling of the molecular multi-ionization thresholds. These results open the way to Coulomb explosion imaging of neutral molecules using intense sub-10-fs laser pulses.
引用
收藏
页数:4
相关论文
共 18 条
[1]   Amplifying laser pulses to the terawatt level at a 1-kilohertz repetition rate [J].
Bagnoud, V ;
Salin, F .
APPLIED PHYSICS B-LASERS AND OPTICS, 2000, 70 (Suppl 1) :S165-S170
[2]   Electronic states of the triply charged molecular ion N23+ and laser-induced Coulomb explosion [J].
Bandrauk, AD ;
Musaev, DG ;
Morokuma, K .
PHYSICAL REVIEW A, 1999, 59 (06) :4309-4315
[3]   PHOTOION-PHOTOION COINCIDENCE STUDY OF THE FRAGMENTATION OF THE DOUBLY CHARGED N-2-2+ CATION [J].
BESNARD, MJ ;
HELLNER, L ;
DUJARDIN, G ;
WINKOUN, D .
JOURNAL OF CHEMICAL PHYSICS, 1988, 88 (03) :1732-1736
[4]   Coulomb explosion imaging of fragmentation channels following laser-induced double ionization of N2 [J].
Beylerian, C ;
Cornaggia, C .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2004, 37 (13) :L259-L265
[5]   Two-step Coulomb explosions of diatoms in intense laser fields [J].
Chelkowski, S ;
Bandrauk, AD .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1995, 28 (23) :L723-L731
[6]   MULTIELECTRON DISSOCIATIVE IONIZATION OF DIATOMIC-MOLECULES IN AN INTENSE FEMTOSECOND LASER FIELD [J].
CORNAGGIA, C ;
LAVANCIER, J ;
NORMAND, D ;
MORELLEC, J ;
AGOSTINI, P ;
CHAMBARET, JP ;
ANTONETTI, A .
PHYSICAL REVIEW A, 1991, 44 (07) :4499-4505
[7]   Nonsequential double ionization of small molecules induced by a femtosecond laser field [J].
Cornaggia, C ;
Hering, P .
PHYSICAL REVIEW A, 2000, 62 (02) :13
[8]   COVARIANCE MAPPING - A CORRELATION METHOD APPLIED TO MULTIPHOTON MULTIPLE IONIZATION [J].
FRASINSKI, LJ ;
CODLING, K ;
HATHERLY, PA .
SCIENCE, 1989, 246 (4933) :1029-1031
[9]   FEMTOSECOND DYNAMICS OF MULTIELECTRON DISSOCIATIVE IONIZATION BY USE OF PICOSECOND LASER [J].
FRASINSKI, LJ ;
CODLING, K ;
HATHERLY, P ;
BARR, J ;
ROSS, IN ;
TONER, WT .
PHYSICAL REVIEW LETTERS, 1987, 58 (23) :2424-2427
[10]   GENERATION OF ULTRAHIGH PEAK POWER PULSES BY CHIRPED PULSE AMPLIFICATION [J].
MAINE, P ;
STRICKLAND, D ;
BADO, P ;
PESSOT, M ;
MOUROU, G .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1988, 24 (02) :398-403