作者: J. Almy , K. Kizer , R. Zadoyan , V. A. Apkarian
DOI: 10.1021/JP993238M
关键词: Light emission 、 Luminescence 、 Dephasing 、 Spectral line 、 Excitation 、 Excited state 、 Raman spectroscopy 、 Stationary state 、 Atomic physics 、 Chemistry
摘要: Spontaneous light emission (SLE) spectra induced by continuous wave excitation of iodine in rare gas matrixes is analyzed from the perspective semiclassical molecular dynamics. The three-time correlation functions that describe process are interpreted terms time circuits, where reversibility mechanics along specified paths establishes distinction between resonant Raman (RR) and fluorescence. observed hot luminescence (fluorescence vibrationally over-damped period dynamics) simulated, underlying dynamics to vibrational dephasing, formation stationary states, predissociation I2(B) matrixes. extracted 3-5 ps agrees with time-domain measurements. analysis allows interpretation liquid phase which contain both structured unstructured SLE as strictly RR, suggesting component due linear complexes. also relaxed emissions cage-bound, doubly spin-orbit excited I*I* prepared via sequential two-photon an intermediate state lifetime 2 ms, assigned A( 3 P1u). two main bands, shift 300 cm -1 proceeding Ar Kr Xe, I*I*(1u) f I2(a(1g)), I*I*(0g + ) I2(B′′(1u)) transitions, analyzed.