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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 36 — Dec. 20, 2010
  • pp: 6850–6854

Determination of the photoluminescence quantum yield of diluted dye solutions in highly scattering media by pulsed photoacoustic spectroscopy

Martín G. González  »View Author Affiliations


Applied Optics, Vol. 49, Issue 36, pp. 6850-6854 (2010)
http://dx.doi.org/10.1364/AO.49.006850


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Abstract

A pulsed photoacoustic system is used to determine the fluorescence quantum yield of diluted dye solutions in highly scattering media. In order to show its accuracy, the quantum yield of Rhodamine 6G in water and ethanol was calculated. The chemical Fuchsin was utilized as a dye reference because the entire excitation energy is converted into nonradiative relaxation processes. The scattering coefficient of the samples was incremented by using spherical silica particles of different sizes and concentrations. The determined mean values in the studied scattering optical density range ( 0 3 cm 1 ) were 0.95 for ethanol and 0.96 for water. These measurements are in excellent agreement with the best literature values.

© 2010 Optical Society of America

OCIS Codes
(290.0290) Scattering : Scattering
(300.2530) Spectroscopy : Fluorescence, laser-induced
(300.6430) Spectroscopy : Spectroscopy, photothermal

ToC Category:
Spectroscopy

History
Original Manuscript: July 6, 2010
Revised Manuscript: November 9, 2010
Manuscript Accepted: November 11, 2010
Published: December 14, 2010

Citation
Martín G. González, "Determination of the photoluminescence quantum yield of diluted dye solutions in highly scattering media by pulsed photoacoustic spectroscopy," Appl. Opt. 49, 6850-6854 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-36-6850


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