Decay Rate;
Magnetic Material;
Experimental Spectrum;
Local Mode;
Excimer Laser;
D O I:
10.1023/A:1004884314200
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Experimental (Xe, Kr) and theoretical (Xe) hot luminescence (HL) data are presented for the atomic cryocrystals Xe and Kr. The experimental spectra were registered under two-photon excimer laser (ArF and KrF) excitation. The theoretical treatment was based on a new nonperturbative quantum-mechanical relaxation. theory, which predicts sharp acceleration of the decay rate around a characteristic "critical" vibrational level of a strong local mode. The time-resolved HL spectra were calculated for the quasi-molecules Xe-2* in solid Xe, taking account of all bound-bound and bound-free transitions in the centre.