Highly Unidirectional Emission and Ultralow-Threshold Lasing from On-Chip Ultrahigh-Q Microcavities

被引：196

作者：

Jiang, Xue-Feng ^{[1
,2
]}

Xiao, Yun-Feng ^{[1
,2
]}

Zou, Chang-Ling ^{[3
]}

He, Lina ^{[4
]}

Dong, Chun-Hua ^{[3
]}

Li, Bei-Bei ^{[1
,2
]}

Li, Yan ^{[1
,2
]}

Sun, Fang-Wen ^{[3
]}

Yang, Lan ^{[4
]}

Gong, Qihuang ^{[1
,2
]}

机构：

[1] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[3] Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China

[4] Washington Univ, Dept Elect & Syst Engn, St Louis, MO 63130 USA

来源：

ADVANCED MATERIALS | 2012年 / 24卷 / 35期

基金：

美国国家科学基金会;

关键词：

unidirectional emission; ultrahigh quality factor; ultralow threshold; whispering gallery mode; microcavity; DIRECTIONAL EMISSION; QUANTUM DOTS; MICROLASERS;

D O I：

10.1002/adma.201201229

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ultrahigh-Q optical whispering gallery microcavities are promising platforms for fundamental studies and applied photonics. A new type of on-chip microcavity is experimentally realized, which supports both highly unidirectional emission and ultra-high-Q factors exceeding 100 million in near infrared. By doping erbium, the unidirectional-emission lasing is observed in 1550 nm band with the threshold as low as 2 μW. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：OP260 / OP264

页数：5

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