Subwavelength Grating Microdisk for Mid-infrared Optical Sensing

Long Zhang; Daoxin Dai

Asia Communications and Photonics Conference (ACP) 2018
OSA Technical Digest (Optica Publishing Group, 2018),
paper S4J.3

Subwavelength Grating Microdisk for Mid-infrared Optical Sensing

Long Zhang and Daoxin Dai

Asia Communications and Photonics Conference 2018

Hangzhou China
26–29 October 2018
ISBN: 978-1-5386-6158-1

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Photovoltaics (S4J)

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L. Zhang and D. Dai, "Subwavelength Grating Microdisk for Mid-infrared Optical Sensing," in Asia Communications and Photonics Conference (ACP) 2018, OSA Technical Digest (Optica Publishing Group, 2018), paper S4J.3.

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Abstract

A silicon-based subwavelength grating microdisk for mid-infrared optical sensing is proposed and demonstrated experimentally. It has a high sensitivity (~205nm/RIU), a high extinction ratio (~16dB), and a large quasi free-spectral range (~41.6nm).

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