Gallium nitride L3 photonic crystal cavities with an average quality factor of 16 900 in the near infrared

被引：30

作者：

Trivino, Noelia Vico ^{[1
]}

Minkov, Momchil ^{[2
]}

Urbinati, Giulia ^{[3
]}

Galli, Matteo ^{[3
]}

Carlin, Jean-Francois ^{[1
]}

Butte, Raphael ^{[1
]}

Savona, Vincenzo ^{[2
]}

Grandjean, Nicolas ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland

[2] Ecole Polytech Fed Lausanne, Lab Theoret Phys Nanosyst, CH-1015 Lausanne, Switzerland

[3] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 23期

基金：

瑞士国家科学基金会;

关键词：

2ND-HARMONIC GENERATION; GAN;

D O I：

10.1063/1.4903861

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photonic crystal point-defect cavities were fabricated in a GaN free-standing photonic crystal slab. The cavities are based on the popular L3 design, which was optimized using an automated process based on a genetic algorithm, in order to maximize the quality factor. Optical characterization of several individual cavity replicas resulted in an average unloaded quality factor Q = 16 900 at the resonant wavelength lambda similar to 1.3 mu m, with a maximal measured Q value of 22 500. The statistics of both the quality factor and the resonant wavelength are well explained by first-principles simulations including fabrication disorder and background optical absorption. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 18 条

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