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Model calculations for enhanced fluorescence in photonic crystal phosphor |
Optics Express, Vol. 20, Issue 3, pp. 2452-2459 (2012)
http://dx.doi.org/10.1364/OE.20.002452
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Abstract
We propose a novel photonic structure, based on the photonic crystal (PC) effect, which simulations show results in an improved fluorescence efficiency from embedded phosphor. To be specific, the phosphor pumping efficiency can be significantly improved by tuning the pump photon energy to a photonic band-edge (PBE) of the PC phosphor. We have confirmed this theoretically by calculating optical properties of one-dimensional PC phosphor structures using the transfer-matrix method and plane-wave expansion method. For a particular model structure based on a quantum dot phosphor, the fluorescence enhancement factor was estimated to be as high as 6.9 for a monochromatic pump source and 2.2 for a broad bandwidth (20 nm) pump source.
© 2012 OSA
OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(260.2510) Physical optics : Fluorescence
(310.4165) Thin films : Multilayer design
(230.5298) Optical devices : Photonic crystals
(230.7405) Optical devices : Wavelength conversion devices
ToC Category:
Photonic Crystals
History
Original Manuscript: October 24, 2011
Revised Manuscript: December 7, 2011
Manuscript Accepted: January 3, 2012
Published: January 19, 2012
Citation
Kyungtaek Min, Yun-Kyoung Choi, and Heonsu Jeon, "Model calculations for enhanced fluorescence in photonic crystal phosphor," Opt. Express 20, 2452-2459 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-3-2452
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