Femtosecond dynamics of NaI ionization and dissociative ionization

被引:72
作者
Charron, E
Suzor-Weiner, A
机构
[1] Univ Paris 11, CNRS, Photophys Mol Lab, F-91345 Orsay, France
[2] CEA, Lab Rech Correspondant, DSM 97 02, Paris, France
[3] Chim Phys Lab, F-75231 Paris 05, France
关键词
D O I
10.1063/1.475786
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The femtosecond dynamics of NaI two-body (NaI + h nu --> NaI+ + e(-)) and three-body (NaI + h nu --> Na+ + I + e(-)) break-up is investigated by quantum mechanical simulations. A first femtosecond laser pulse creates an excited molecular wave packet, and an additional ultrafast photoionization step monitors its subsequent time evolution, The theoretical results are compared with available experimental data. The branching ratio between these two competing fragmentation channels is extracted and an experimental scenario is proposed to control the outcome of this reactive half-collision, (C) 1998 American Institute of Physics. [S0021-9606(98)01301-4].
引用
收藏
页码:3922 / 3931
页数:10
相关论文
共 36 条
[11]  
Ehrenfest P., 1927, Z. Phys., V45, P455, DOI [DOI 10.1007/BF01329203, 10.1007/BF01329203]
[12]   2-PHOTON EXCITATION OF NAL WITH FEMTOSECOND LASER-PULSES [J].
ENGEL, V ;
METIU, H .
JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (03) :1596-1602
[13]   MOLECULAR-STATE EVOLUTION AFTER EXCITATION WITH AN ULTRA-SHORT LASER-PULSE - A QUANTUM ANALYSIS OF NAI AND NABR DISSOCIATION [J].
ENGEL, V ;
METIU, H ;
ALMEIDA, R ;
MARCUS, RA ;
ZEWAIL, AH .
CHEMICAL PHYSICS LETTERS, 1988, 152 (01) :1-7
[14]   THE STUDY OF NAI PREDISSOCIATION WITH PUMP PROBE FEMTOSECOND LASER-PULSES - THE USE OF AN IONIZING PROBE PULSE TO OBTAIN MORE DETAILED DYNAMIC INFORMATION [J].
ENGEL, V ;
METIU, H .
CHEMICAL PHYSICS LETTERS, 1989, 155 (01) :77-82
[15]   SOLUTION OF THE SCHRODINGER-EQUATION BY A SPECTRAL METHOD [J].
FEIT, MD ;
FLECK, JA ;
STEIGER, A .
JOURNAL OF COMPUTATIONAL PHYSICS, 1982, 47 (03) :412-433
[16]   DIRECT OBSERVATION OF NONCHAOTIC MULTILEVEL VIBRATIONAL-ENERGY FLOW IN ISOLATED POLYATOMIC-MOLECULES [J].
FELKER, PM ;
ZEWAIL, AH .
PHYSICAL REVIEW LETTERS, 1984, 53 (05) :501-504
[18]   ATOMIC ABSORPTION CROSS SECTIONS OF LITHIUM AND SODIUM BETWEEN 600 AND 1000 A [J].
HUDSON, RD ;
CARTER, VL .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1967, 57 (05) :651-&
[19]   Experimental femtosecond photoionization of NaI [J].
Jouvet, C ;
Martrenchard, S ;
Solgadi, D ;
DedonderLardeux, C ;
Mons, M ;
Gregoire, G ;
Dimicoli, I ;
Piuzzi, F ;
Visticot, JP ;
Mestdagh, JM ;
DOliveira, P ;
Meynadier, P ;
Perdrix, M .
JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (14) :2555-2560
[20]   THEORY OF THE DISSOCIATIVE PHOTOIONISATION OF H-2 [J].
KANFER, S ;
SHAPIRO, M .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1983, 16 (21) :L655-L660