Landau-Zener-type effects in optical spectra of molecules
Abstract
The effect of nonadiabatic coupling of electron-vibrational terms of molecular systems on their optical properties is studied. It is shown that Landau-Zener effects in the vicinity of a quasi-intersection of terms leads to an essential rearrangement of the energy spectrum, beats in the absorption line intensity, and asymmetry in the absorption and emission spectra. Benzophenon is discussed as a typical system in which such effects can be observed. Term intersection induced by a laser is also discussed.
- Publication:
-
Zhurnal Eksperimentalnoi i Teoreticheskoi Fiziki
- Pub Date:
- April 1978
- Bibcode:
- 1978ZhETF..74.1230A
- Keywords:
-
- Electron Oscillations;
- Inelastic Scattering;
- Landau Factor;
- Molecular Spectra;
- Optical Properties;
- Zener Effect;
- Absorption Spectra;
- Emission Spectra;
- Energy Spectra;
- Laser Outputs;
- Nonadiabatic Conditions;
- Atomic and Molecular Physics