Precise optical modeling of blue light-emitting diodes by Monte Carlo ray-tracing
Precise optical modeling of blue light-emitting diodes by Monte Carlo ray-tracing
复制标题
通过蒙特卡罗光线追踪对蓝色发光二极管进行精确光学建模
DOI：
10.1364/oe.18.009398
复制
发表时间：
2010-04-26
期刊：
影响因子：
3.8
通讯作者：
Liu, Sheng
中科院分区：
文献类型：
--
作者：
Liu, Zongyuan;Wang, Kai;Liu, Sheng
通过合理的光学参数和蒙特卡罗光线追迹法建立了蓝光发光二极管（LED）的精确光学模型，能够精确预测裸LED和封装LED的光提取和辐射模式。LED材料的折射率和吸收系数是通过大量的参考文献和模拟与实验之间的比较来确定的。在光学模型中考虑了表面粗糙度的影响，提高了模拟精度。裸蓝色LED（光提取>96.5%，辐射模式>99%）和封装蓝色LED（光提取和辐射模式>98.5%）的模拟精度均非常出色。(C)2010年美国光学学会
Precise optical modeling of blue light-emitting diodes (LEDs) is constructed by reasonable optical parameters and Monte Carlo ray-tracing with the capability of precisely predicting light extraction and radiation pattern for both bare LED and packaged LED. Refractive indices and absorption coefficients of LED materials are determined by abundant references and comparisons between simulations and experiments. Surface roughness is considered in the optical model to improve the simulation precision. The simulation precisions are excellent for both bare blue LEDs (>96.5% for light extraction and >99% for radiation pattern) and packaged blue LEDs (>98.5% for both light extraction and radiation pattern). (C) 2010 Optical Society of America