[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/KJOP.2011.22.2.083

Improving the Calculation Speed of Ray-tracing Based Simulator for Analyzing an Integrating Sphere with OpenMP Directive and Guaranteeing the Randomness of Monte Carlo Method

Kim, Seung-Yong (Optics and Photonics Elite Research Academy (OPERA), INHA University)
Kim, Dae-Chan (Optics and Photonics Elite Research Academy (OPERA), INHA University)
O, Beom-Hoan (Optics and Photonics Elite Research Academy (OPERA), INHA University)
Park, Se-Geun (Optics and Photonics Elite Research Academy (OPERA), INHA University)
Lee, El-Hang (Optics and Photonics Elite Research Academy (OPERA), INHA University)
Lee, Seung-Gol (Optics and Photonics Elite Research Academy (OPERA), INHA University)

Publication Information

Korean Journal of Optics and Photonics / v.22, no.2, 2011 , pp. 83-89 More about this Journal

Abstract

In order to improve the calculation speed of an integrating-sphere simulator based on a ray-tracing method, parallel processing with OpenMP directive was implemented into the simulator and the randomness of Monte Carlo method was guaranteed by utilizing a parallel random number generator. It was confirmed that simulation results obtained with more than $10^7$ rays showed good agreement with theoretical results within the error range of 0.5%, and that the calculation speed improved as the number of threads increased. Finally, the spatial response distribution functions of a real integrating sphere were simulated and compared with previous results.

Keywords

Integrating sphere; LED; Total luminous flux; Ray tracing; OpenMP directive;

Citations & Related Records

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