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Measurement of energy transfer upconversion in Nd:YAG via the z-scan technique

  • R. P. Yan
  • , S. J. Yoon
  • , S. J. Beecher
  • , J. I. Mackenzie
  • University of Southampton

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present the determination of the energy transfer upconversion (ETU) coefficient for Nd:YAG via the z-scan technique, achieved by studying the irradiance dependence of the transmission of a pump laser tuned to the absorption peak around 808 nm. A spatially dependent two-level rate equation model has been utilized to predict the transmission dependence as a function of the sample's position in the z-scan experiment, with the ETU coefficient the only free parameter. Comparing experimental results with the model's output, the ETU coefficient for 1 at.% Nd:YAG is determined to be 5.1 ± 0.4 ×10-17 cm3/s.

Original languageEnglish
Title of host publicationLaser Sources and Applications II
PublisherSPIE
ISBN (Print)9781628410839
DOIs
StatePublished - 2014
EventLaser Sources and Applications II - Brussels, Belgium
Duration: 14 Apr 201417 Apr 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9135
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLaser Sources and Applications II
Country/TerritoryBelgium
CityBrussels
Period14/04/1417/04/14

Keywords

  • Absorption coefficient
  • Nd:YAG
  • Upconversion

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