原子与分子物理学报
原子與分子物理學報
원자여분자물이학보
Journal of Atomic and Molecular Physics
2015年
5期
723-727
,共5页
库仑爆炸核初始动能释放谱%非Born-Oppenheimer近似%直接多光子电离%电荷共振增强电离
庫崙爆炸覈初始動能釋放譜%非Born-Oppenheimer近似%直接多光子電離%電荷共振增彊電離
고륜폭작핵초시동능석방보%비Born-Oppenheimer근사%직접다광자전리%전하공진증강전리
The Coulomb explosion nuclear initial kinetic-energy-release spectra%Non Born-Oppenheimer approximation%Direct multi-photon ionization%Charge-resonance-enhanced ionization
通过数值求解非Born-Oppenheimer( BO)近似条件下的一维含时薛定谔方程,理论模拟了H2+在不同核初始振动态条件下(v=0到v=7)的库仑爆炸核初始动能释放谱。模拟结果表明:强激光场中氢分子离子的电离通道主要包括直接多光子电离、电荷共振增强电离及有中间过程的电荷共振增强电离,并且可以通过选取不同的初始振动态实现对氢分子离子电离通道的控制。
通過數值求解非Born-Oppenheimer( BO)近似條件下的一維含時薛定諤方程,理論模擬瞭H2+在不同覈初始振動態條件下(v=0到v=7)的庫崙爆炸覈初始動能釋放譜。模擬結果錶明:彊激光場中氫分子離子的電離通道主要包括直接多光子電離、電荷共振增彊電離及有中間過程的電荷共振增彊電離,併且可以通過選取不同的初始振動態實現對氫分子離子電離通道的控製。
통과수치구해비Born-Oppenheimer( BO)근사조건하적일유함시설정악방정,이론모의료H2+재불동핵초시진동태조건하(v=0도v=7)적고륜폭작핵초시동능석방보。모의결과표명:강격광장중경분자리자적전리통도주요포괄직접다광자전리、전하공진증강전리급유중간과정적전하공진증강전리,병차가이통과선취불동적초시진동태실현대경분자리자전리통도적공제。
The Coulomb explosion nuclear initial kinetic-energy-release spectra of the molecular ion H2+ for various initial vibrational states ( from v=0 to v=7 ) are theoretically simulated by numerically solving the time-dependent Schr?dinger equation in non Born-Oppenheimer ( BO) approximation. The results confirm that i-onization channels of H2+ contain direct multi-photon ionization, charge-resonance-enhanced ionization and charge-resonance -enhanced ionization with middle process. The ionization channels could be controlled by choosing different initial vibrational states.