| 光子晶体发光二极管 |
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| 引用本文： | 苏萍,许振丰,顾华荣,曹良才,何庆声,金国藩. 光子晶体发光二极管[J]. 光学技术, 2007, 33(4): 505-509 |
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| 作者姓名： | 苏萍 许振丰 顾华荣 曹良才 何庆声 金国藩 |
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| 作者单位： | 清华大学,精密测试技术与仪器国家重点实验室,北京,100084 |
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| 摘 要： | 利用光子晶体的光子禁带和光栅衍射效应可以提高LED的出光效率,扩大LED的应用范围。总结了光子晶体发光二极管的原理和典型器件。通过比较表明,与光子禁带效应相比,利用光栅衍射效应提高LED出光效率的方法更适用于电注入发光。因此可望用更廉价的方法在LED表面制造光子晶体,可通过光栅衍射效应来有效地提高其出光效率。
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| 关 键 词： | 导波光学(光纤和集成光学) 光子晶体 发光二极管 光子禁带 光栅 |
| 收稿时间： | 2006-07-12 |
Photonic crystal light emitting diode |
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| SU Ping,XU Zhen-feng,GU Hua-rong,CAO Liang-cai,HE Qing-sheng,JIN Guo-fan. Photonic crystal light emitting diode[J]. Optical Technique, 2007, 33(4): 505-509 |
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| Authors: | SU Ping XU Zhen-feng GU Hua-rong CAO Liang-cai HE Qing-sheng JIN Guo-fan |
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| Abstract: | Combined with photonic crystals, the extraction efficiency of LED can be greatly enhanced by the effects of photonic band gap (PBG) and grating diffraction. Theoretical analysis on the photonic crystal LED and the corresponding typical devices are presented and summarized. It can be concluded that the means by use of the effcts of grating diffraction is more applicable to the LED under current injection. More low-cost fabrication methods are expected to integrate photonic crystal structures on surface of LED, and to enhance the extraction efficiency of LED by the effect of grating diffraction. |
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| Keywords: | guided wave optics(fiber and integrated optics) photonic crystal light emitting diode photonic band gap grating |
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