- 作者: Chu, Shih-I
- 作者服務機構: Dept. of Chemistry, Univ. of Kansas, Lawrence, Kansas, U.S.A.
- 中文摘要: We present a short account of the recent progress in the study of a novel strong-field phenomenon recently uncovered: atoms and molecules may be stabilized by intense laser fields. The laser-induced atomic and molecular stabilization arises from quite different origins. We present a complex-scaling Fourier-grid Hamiltonian method for the discretization and solution of the Schrodinger equation within the non-Hermitian Floquet Hamiltonian formalism. The method provides a simple, yet accurate and highly efficient, new technique for the determination of the complex quasienergies (E/sub R/, -.GAMMA./2) of atoms and molecules. The real parts, E/sub R/, provide the a.c. Stark shifts, and the imaginary parts, .GAMMA., give rise to multiphoton ionization rates of atoms or multiphoton dissociation rates of molecules. The method is applied to the studies of (i) stabilization and ionization suppression of negative ions in high-frequency superintense laser fields; (ii) laser-induced molecular stabilization and chemical bond hardening in strong laser fields.
- 英文摘要: --
- 中文關鍵字: Laser-Induced Stabilization; Schrodinger Equation; Stark Shift; Multiphoton Ionization Rate; Multiphoton Dissociation Rate
- 英文關鍵字: 雷射誘導穩定;Schrodinger方程式;Stark位移;多光子離子化速度;多光子解離速率