Ohwrvation~ of the infrared fluorcsccncc of (quid or solid CO following; cxcitdtlon by :I frcqncncy-doublcti TCA CO? laser rwed ;I non-c?rponcntiJ decay curve for a pure CO saalplc. Vrbration,d rcld?rdtwn ant1 vlbrati0n.d dlffuslon conrtants wcrc dctcrmincd by ancllysing thcsc curves III the tempera
On vibrational relaxation in liquid and solid AsD3
โ Scribed by Simon S. Cohen; Richard E. Wilde
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 381 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
We have studied some viirational-relaxation effects in liquid and solid As&. Experimentally, we measured the Raman ~1 <symmetry species Al) band at 160 K and 54 K. Our theoreticalapproach in analyzing the data makes use of the memoryfunctions technique to result in a clear physical description of the behaviour in the system. We regard the agreement be-Meen experiment and theory as more than satisfactory_
๐ SIMILAR VOLUMES
We discuss the relationship between vibrational population relaxation, loss of phase coharence, and the homogeneously broadened spontaneous poklzed Raman linewidth. We derive a general equation reltmg these quantitres. and show that extension of the simple model (where the coupling to the heat bath
Trio types of time resolved experiments have been performed on the intermediate sized poi).ttomtc molecule dieth> I&-mine\_ in the liquid phase. in order to elucidate the pathway for vtbrationsl relaxation of the u= 3 level of the NH stretchins mode, which has 9410 cm-l of energy. Both techniques ha
111~ vibratwnal rclauation tmw of the '\*Hz molcculc hat been measured as ti L nction 01 density and tcmpcraturc bctwccn 25 and 40 K m the gas md Iquid phase, and at fixed density III the solid and liquid near the fusion point.