CaltechAUTHORS
  A Caltech Library Service

Energy and phase relaxation of phosphorescent F centers in CaO

Glasbeek, M. and Smith, D. D. and Perry, J. W. and Lambert, Wm. R. and Zewail, A. H. (1983) Energy and phase relaxation of phosphorescent F centers in CaO. Journal of Chemical Physics, 79 (5). pp. 2145-2149. ISSN 0021-9606. https://resolver.caltech.edu/CaltechAUTHORS:20160921-131025981

[img] PDF - Published Version
See Usage Policy.

706kB

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20160921-131025981

Abstract

In this paper we study the temperature‐induced homogeneous broadening of the no‐phonon line in the emission spectrum of the F center in CaO. The linewidth can be fitted to n(n+1), where n is the thermally averaged occupation number of phonons with a frequency of 90 cm^(−1). The results are characteristic of elastic scattering of pseudolocalized phonons at the defect site. These phonons also appear to dynamically couple the Jahn–Teller components of the F center in the photoexcited^3 T_(1u) state and thus give rise to a temperature dependence of the lifetime of this phosphorescent state. Finally, from experiments using laser‐selective excitation it is concluded that the zero‐phonon emission peaking at 571.1 nm does not originate in the F center.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.446094DOIArticle
http://scitation.aip.org/content/aip/journal/jcp/79/5/10.1063/1.446094PublisherArticle
Additional Information:© 1983 American Institute of Physics. Received 02 February 1983 Accepted 05 May 1983. We wish to thank the National Science Foundation (Grant No. DMR 8105034) and the John van Geuns fonds for the partial support of this work. Two of us (M. G. and A.H. Z.) would also like to acknowledge a NATO Research Grant (No. 046.82).
Funders:
Funding AgencyGrant Number
NSFDMR-8105034
John van Geuns FondsUNSPECIFIED
North Atlantic Treaty Organization (NATO)046.82
Issue or Number:5
Record Number:CaltechAUTHORS:20160921-131025981
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20160921-131025981
Official Citation:Energy and phase relaxation of phosphorescent F centers in CaO Glasbeek, M. and Smith, D. D. and Perry, J. W. and Lambert, Wm. R. and Zewail, A. H., The Journal of Chemical Physics, 79, 2145-2149 (1983), DOI:http://dx.doi.org/10.1063/1.446094
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70514
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:30 Sep 2016 19:28
Last Modified:03 Oct 2019 10:31

Repository Staff Only: item control page