物理学报Issue(19)：1-6,6.DOI:10.7498/aps.63.198202
H+2在强激光场中的解离及其量子调控的理论研究
Theoretical study of the disso ciation of H+2 and the quantum control of dynamic pro cess by an intense laser field
摘要
Abstract
The dissociation dynamics of hydrogen molecular ions in intense fields has been investigated by using an accurate three-dimensional (3D) time-dependent wave packet approach. Its dissociation mechanism and intensity dependence can be studied by analyzing the dissociation probability and kinetic energy resolved (KER) spectra of H2+. It is found that the dissociation of H2+ comes from ν=5-9 states at the laser intensity of I1 = 5.0 × 1013 W/cm2. The dissociation process includes bond softening (BS), bond hardening (BH), and below threshold dissociation (BTD). As the laser intensity increases to I2 = 1.0 × 1014 W/cm2, the above threshold dissociation (ATD) from ν = 3 and 4 states is predominant, and the contributions from the bond softening and bond hardening are reduced during the dissociation process. The above conclusions may provide scientific prediction and theoretical guidance for the experiment in the future.关键词
光解离/氢分子离子/含时波包法/核动能谱Key words
photodissociation/hydrogen molecular ion/time-dependent wave packet method/kinetic energy resolved spectra引用本文复制引用
姚洪斌,张季,彭敏,李文亮..H+2在强激光场中的解离及其量子调控的理论研究[J].物理学报,2014,(19):1-6,6.基金项目
新疆维吾尔自治区自然科学基金(批准号:2013211B32)资助的课题.* Project supported by the Natural Science Foundation of Xinjiang China (Grant No.2013211B32) （批准号:2013211B32）
