Bond breaking in light-induced potentials

被引：22

作者：

Chang, Bo Y. ^{[2
]}

Shin, Seokmin ^{[2
]}

Santamaria, Jesus ^{[1
]}

Sola, Ignacio R. ^{[1
]}

机构：

[1] Univ Complutense, Dept Quim Fis, E-28040 Madrid, Spain

[2] Seoul Natl Univ, Sch Chem BK21, Seoul 151747, South Korea

来源：

JOURNAL OF CHEMICAL PHYSICS | 2009年 / 130卷 / 12期

关键词：

bonds (chemical); Franck-Condon factors; iodine compounds; negative ions; photodissociation; reaction kinetics; spectral line shift; INTENSE LASER FIELDS; MULTIPHOTON IONIZATION; UNIMOLECULAR REACTIONS; CHEMICAL-REACTIONS; ADIABATIC PASSAGE; PULSES; DISSOCIATION; MOLECULES; DYNAMICS; STATES;

D O I：

10.1063/1.3094319

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：

We study the photodissociation of ICl- under moderately strong (TW/cm(2)) and short (below picosecond) laser pulses. Using a single resonant pump pulse, the photodissociation spectra shows two barely overlapping bands corresponding to Frank-Condon excitation and dissociation in two electronic states. By adding a nonresonant stronger control pulse we show that (1) the photodissociation bands can be blueshifted and (2) the asymptotic state of the fragments depends on the chosen pulse sequence. If the pump pulse precedes the control pulse or the control pulse straddles the pump pulse, the outgoing wave packet has components in the two dissociation channels, whereas if the control pulse precedes the pump pulse, the photodissociation proceeds selectively in a single channel.

引用

页数：9

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