摘要采用开放的梯形三能级原子模型及密度矩阵方程理论, 数值模拟了不同参数条件下,
双色双光场多光子电离过程中粒子数布居随时间的变化. 发现两束激光频率失谐量均为零时 …

The variation of absorption feature in the process of resonance enhanced multiphoton
ionization (REMPI) as a function of resonance detuning, Rabi frequency and ionization rate …

The spectrum of barium above the first ionization potential is significantly modified by
collisions with rare gas atoms. Atomic Ba vapor was produced in a heat-pipe oven. The two …

The theory of density matrix equation is used to describe the interaction between laser field
and atoms or molecules (referred as particles). With this theory, this paper investigated the …

Femtosecond (fs) laser propagation and fluorescence of dense potassium vapor was
studied, and the spectral region around the first and the second doublets of the principal …

We studied the signal from a thermionic diode when a femtosecond laser beam was
spatially overlapped by an excimer pumped dye laser beam. The nanosecond dye laser was …

The first autoionization region of barium was studied using a single-color two-photon
excitation scheme. The resonance energies and linewidths of barium 5d 3/2 nd 1 D 0, 2 …

The analytic formula of the ionization probability in the process of 2+ 2 resonance enhanced
multi-photon ionization (REMPI) is derived from the dynamic rate equation about the …

The absorptive and dispersive properties in the process of resonance enhanced multiphoton
ionization are investigated theoretically. It is shown that resonance absorption presents the …

Broadening and shift of spectral lines in dense Ba and Sr vapor have been studied below
and above their first ionization limits. The latter are well-known autoionizing spectral lines …