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The connection between the dynamic intensity model and the vibronic intensity model for f-f transitions
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Lawrence Livermore National Laboratory, Livermore, CA 94551, USA .
Responsible organisation
2006 (English)In: Journal of physics. B: Atomic, molecular and optical physics, ISSN 0953-4075, Vol. 39, no 9, 2127-2143 p.Article in journal (Refereed) Published
Abstract [en]

In this paper we discuss intensity mechanisms of interest for rare-earth ions in optical materials. More specifically, we investigate the character of two models-first, a semi-classical dynamic intensity model, and second, a more traditional quantum mechanical vibronic intensity model. We focus on the case of f-f transitions and show that the predicted oscillator strengths then are the same under very reasonable approximations. We emphasize that this connection between the models cannot be made in the case of f-d transitions. The dynamic intensity model has an interesting classical interpretation. We show that it is very convenient to apply this approach together with classical dynamical techniques such as molecular dynamics simulation or the classical Monte Carlo method. The classical approach simplifies both the interpretation and calculation of vibronic oscillator strengths in complex systems. The concept of an effective temperature works as a bridge between the two models; so realistic predictions can be obtained even at low temperatures.

Place, publisher, year, edition, pages
2006. Vol. 39, no 9, 2127-2143 p.
Keyword [en]
molecular dynamics, vibrations, rare-earth, optical physics
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-3620DOI: 10.1088/0953-4075/39/9/003ISI: 000238319900006Scopus ID: 2-s2.0-33745784208Local ID: 3756OAI: oai:DiVA.org:miun-3620DiVA: diva2:28652
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-09-29Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf