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Extension of the Kubelka–Munk theory for fluorescent turbid media to a nonopaque layer on a background |
JOSA A, Vol. 28, Issue 7, pp. 1349-1357 (2011)
http://dx.doi.org/10.1364/JOSAA.28.001349
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Abstract
Photoluminescence is one of the processes by which photons are emitted after the absorption of incoming photons at a higher energy. But the yield and spectral band shape of the emission can be altered by the optical properties of the luminophore environment through scattering and absorption. To understand these effects on a photoluminescent turbid layer, the Kubelka–Munk model, which is a two-flux approximation of the radiative transfer equation, can be used. Compared to previous works, this translucent layer can be applied on a colored opaque background. The model takes into account the absorption, scattering, and luminescent properties of the layer and the reflection by the background, for both the light excitation and the light emission. The competition between these different optical interactions is studied; e.g., the model can predict the presence of an emission maximum by increasing the thickness of the luminescent layer on a light background. Moreover, the model is extended to two important cases: the presence of a photoluminescent background and the effect of a refractive index discontinuity.
© 2011 Optical Society of America
OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(260.2510) Physical optics : Fluorescence
(290.7050) Scattering : Turbid media
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
ToC Category:
Physical Optics
History
Original Manuscript: April 18, 2011
Manuscript Accepted: April 29, 2011
Published: June 3, 2011
Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics
Citation
Lionel Simonot, Mathieu Thoury, and John Delaney, "Extension of the Kubelka–Munk theory for fluorescent turbid media to a nonopaque layer on a background," J. Opt. Soc. Am. A 28, 1349-1357 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-28-7-1349
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