Light Extraction Enhancement of GaN LED with a Two-Dimensional Photonic Crystal Slab

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2011,（5）
• 页码范围: 161-163
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/28/5/054216

摘要

Light extraction effects ora photonic crystal slab with a micrometer scale lattice constant are studied.A GaN light emitting diode(LED) with a photonic crystal slab is fabricated.The light extraction effects and the enhancement mechanism are investigated.From theoretical analysis,it is found that the characteristics of LED light emission are modulated by the photonic crystal slab.Experimental results show that the LED light emission intensity is enhanced by 38% due to guide mode extracting by the photonic crystal.