Genetically designed L3 photonic crystal nanocavities with measured quality factor exceeding one million

被引：109
作者：
Lai, Y. [1 ]
Pirotta, S. [2 ]
Urbinati, G. [2 ]
Gerace, D. [2 ]
Minkov, M. [3 ]
Savona, V. [3 ]
Badolato, A. [1 ]
Galli, M. [2 ]
机构：
[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
[2] Univ Pavia, Dipartimento Fis, I-27100 Pavia, Italy
[3] Ecole Polytech Fed Lausanne, Lab Theoret Phys Nanosyst, CH-1015 Lausanne, Switzerland
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 24期
基金：
瑞士国家科学基金会; 美国国家科学基金会;
关键词：
CAVITIES;
D O I：
10.1063/1.4882860
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on the experimental realization of ultra-high quality factor (Q) designs of the L3-type photonic crystal nanocavity. Based on genetic optimization of the positions of few nearby holes, our design drastically improves the performance of the conventional L3 as experimentally confirmed by direct measurement of Q similar or equal to 2 x 10(6) in a silicon-based photonic crystal membrane. Our devices rank among the highest Q/V ratios ever reported in photonic crystal cavities, holding great promise for the realization of integrated photonic platforms based on ultra-high-Q resonators. (C) 2014 AIP Publishing LLC.
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页数：4
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