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Updated: Jun 2, 2026
Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
GaN-based LEDs surrounded with a two-dimensional nanohole photonic crystal structure for effective laterally guided
Yun-Wei Cheng1, Szu-Chieh Wang, Yu-Feng Yin
1Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei City, 10617, Taiwan.
Abstract:
Traditional implementation of photonic crystals (PhCs) on LED light emission surfaces results in weak coupling of light with the PhCs. Here we introduce a GaN-based LED surrounded with a nanohole PhC structure along the mesa edges. The laterally guided modes in the epi-structure can be effectively coupled with the two-dimensional periodic structure. The proposed structure results in the improvement of LED light extraction and provides flexibility of radiation directionality control.
