Analysis and transition probabilities of the A 1Σ+→X 1Σ+ system of KH excited by the 4880 Å line of the argon ion laser

Abstract

Articles you may be interested inTheoretical transition probabilities for the A ̃ Π 1 -X ̃ Σ + 1 system of AlNC and AlCN isomers based on global potential energy surfaces Erratum: "Analysis and transition probabilities of the A Σ + 1 → X Σ + 1 system of KH excited by the 4880 Å line of the argon ion laser" [J.The 4051-Å band of C 3 ( A ̃ Π u 1 − X ̃ Σ g + 1 , 000-000): Perturbed low-J lines and lifetime measurements Radiative transition probabilities, lifetimes and dipole moments for the vibrational levels of the X 1 Σ + ground state of 39 K 85 RbThe fluorescence spectrum of KH induced by the 4880 Å line of an argon ion laser has been analyzed. This work extends previous observations on potassium hydride in visible region by using this excitation line. Along with the principal fluorescence series for the A 1 ⌺ ϩ →X 1 ⌺ ϩ band system, corresponding to the excitation transition, vЈϭ7, JЈϭ6←vЉϭ0, JЉϭ5, we analyzed a very interesting satellite rotational and vibrational structure induced by collision. The radiative transition probabilities for the A 1 ⌺ ϩ →X 1 ⌺ ϩ band system of KH have been calculated by using hybrid potential energy curves for the X 1 ⌺ ϩ and A 1 ⌺ ϩ states and transition dipole moment function from the radiative lifetimes of different vibrational levels (vЈϭ5Ϫ22 in the A 1 ⌺ ϩ state͒ reported by Giroud and Nedelec. The transition probabilities and lifetimes are in good agreement with the corresponding observed measurements usually within the experimental uncertainty. Collision-induced rotational and vibrational energy transfer in the A 1 ⌺ ϩ state has been investigated. From the rotational and vibrational satellite structure of some bands, cross sections for rotational and vibrational energy transfer have been determined.

Diabatization based on the dipole and quadrupole: The DQ method

“…[59][60][61][62][63] The first three 1 + states of LiH consist of two covalent states and one ionic state. The ionic diabatic state has a 1s 2 H valence configuration and will be denoted state I.…”