Abstract

The mid-infrared (MIR) spectral range holds significant potential for spectroscopic and sensing applications because it encompasses the fingerprint region that unveils the vibrational and rotational signatures of molecules. CMOS-compatible on-chip devices that can achieve strong light-matter interaction in the entire fingerprint region are considered a promising way for such applications, but remain unprecedented. Here we present an on-chip MIR germanium photonic crystal cavity that covers the entire fingerprint region. This is made possible by harnessing a homemade air-cladding germanium platform. Our MIR device creates a new avenue toward integrated nonlinear optics and on-chip biochemical sensing in the fingerprint region.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Focusing subwavelength grating coupler for mid-infrared suspended membrane germanium waveguides

Jian Kang, Zhenzhou Cheng, Wen Zhou, Ting-Hui Xiao, Kimmy-Laure Gopalakrisna, Mitsuru Takenaka, Hon Ki Tsang, and Keisuke Goda
Opt. Lett. 42(11) 2094-2097 (2017)

Mid-infrared photonic crystal cavities in silicon

Raji Shankar, Rick Leijssen, Irfan Bulu, and Marko Lončar
Opt. Express 19(6) 5579-5586 (2011)

Silicon photonic platforms for mid-infrared applications [Invited]

Ting Hu, Bowei Dong, Xianshu Luo, Tsung-Yang Liow, Junfeng Song, Chengkuo Lee, and Guo-Qiang Lo
Photon. Res. 5(5) 417-430 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription