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Proceedings Paper

Monte Carlo simulation of radiation pattern for rare earth ions doped luminescent glasses under violet LED excitation
Author(s): Xiaohua Lei; Yong'an Feng; Weimin Chen; Peng Zhang; Linjiao Ren; Xiaoqing Du
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Paper Abstract

Rare earth ions doped luminescence glasses are promising phosphor candidates in the fabrication of LEDs in the future due to their specific advantages such as higher thermal stability, higher transparency, compared to current commercial LEDs. While radiation patterns of luminescent glasses are different from current commercial LEDs fabricated by phosphors, luminescent glasses play roles both in emitting light and adjusting light distribution. In order to investigate radiation pattern of luminescent glasses, luminescence physical model of flat glasses doped with single rare earth ion was presented. Process of photons acting on rare earth ions and transporting in the luminescent glasses, and output light distribution from luminescent glasses were analyzed based on violet LED. At last, the simulating of radiation pattern for luminescent glasses based on Monte Carlo ray-tracing method was proved by experiment.

Paper Details

Date Published: 30 September 2013
PDF: 7 pages
Proc. SPIE 8835, LED-based Illumination Systems, 88350R (30 September 2013); doi: 10.1117/12.2022098
Show Author Affiliations
Xiaohua Lei, Chongqing Univ. (China)
Yong'an Feng, Chongqing Univ. (China)
Weimin Chen, Chongqing Univ. (China)
Peng Zhang, Chongqing Univ. (China)
Linjiao Ren, Chongqing Univ. (China)
Xiaoqing Du, Chongqing Univ. (China)

Published in SPIE Proceedings Vol. 8835:
LED-based Illumination Systems
Jianzhong Jiao, Editor(s)

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