Parametric optomechanical oscillations in two-dimensional slot-type high-Q photonic crystal cavities

被引：28

作者：

Zheng, Jiangjun ^{[1
]}

Li, Ying ^{[1
]}

Aras, Mehmet Sirin ^{[1
]}

Stein, Aaron ^{[2
]}

Shepard, Ken L. ^{[3
]}

Wong, Chee Wei ^{[1
]}

机构：

[1] Columbia Univ, Opt Nanostruct Lab, New York, NY 10027 USA

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 21期

关键词：

WAVE-GUIDES; BAND-GAPS; NANOCAVITIES; RESONATORS; DESIGN; DEFECT; SLABS;

D O I：

10.1063/1.4719107

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We experimentally demonstrate an optomechanical cavity based on an air-slot photonic crystal cavity with optical quality factor Q(o) - 4.2 x 10(4) and a small modal volume of 0.05 cubic wavelengths. The optical mode is coupled with the in-plane mechanical modes with frequencies up to hundreds of MHz. The fundamental mechanical mode shows a frequency of 65 MHz and a mechanical quality factor of 376. The optical spring effect, optical damping, and amplification are observed with a large experimental optomechanical coupling rate g(om)/2 pi of 154 GHz/nm, corresponding to a vacuum optomechanical coupling rate g*/2 pi of 707 kHz. With sub-mW or less input power levels, the cavity exhibits strong parametric oscillations. The phase noise of the photonic crystal optomechanical oscillator is also measured. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4719107]

引用

页数：5