OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 28, Iss. 4 — Feb. 15, 2003
  • pp: 239–241

Fluorescence quantum efficiency measurements in the presence of Auger upconversion by the thermal lens method

Viviane Pilla, Tomaz Catunda, Hans P. Jenssen, and Arlete Cassanho  »View Author Affiliations


Optics Letters, Vol. 28, Issue 4, pp. 239-241 (2003)
http://dx.doi.org/10.1364/OL.28.000239


View Full Text Article

Acrobat PDF (92 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Mode-mismatched thermal lens (TL) measurements in Cr3+ -doped fluoride crystals (LiSrAlF6 and LiSrGaF6) are reported. A nonlinear increase of the TL signal, and decrease of quantum efficiency, with increasing excitation power was observed and attributed to energy-transfer upconversion (ETU). Assuming an upconversion rate that is proportional to the excited-state population, Wup = λ Ne , the theoretical model developed fits the experimental data well. The ETU parameters (λ) were determined with unprecedented accuracy for low Cr concentrations. Thermo-optical parameters (K, ds/dT) were also obtained.

© 2003 Optical Society of America

OCIS Codes
(190.7220) Nonlinear optics : Upconversion
(260.2160) Physical optics : Energy transfer
(350.5340) Other areas of optics : Photothermal effects
(350.6830) Other areas of optics : Thermal lensing

Citation
Viviane Pilla, Tomaz Catunda, Hans P. Jenssen, and Arlete Cassanho, "Fluorescence quantum efficiency measurements in the presence of Auger upconversion by the thermal lens method," Opt. Lett. 28, 239-241 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-4-239

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited