On-chip optical transduction scheme for graphene nano-electro-mechanical systems in silicon-photonic platform

Dash, Aneesh and Selvaraja, S K and Naik, A K (2018) On-chip optical transduction scheme for graphene nano-electro-mechanical systems in silicon-photonic platform. In: OPTICS LETTERS, 43 (4). pp. 659-662.

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Abstract

We present a scheme for on-chip optical transduction of strain and displacement of graphene-based nano-electromechanical systems (NEMS). A detailed numerical study on the feasibility of three silicon-photonic integrated circuit configurations is presented: the Mach-Zehnder interferometer (MZI), the micro-ring resonator, and the ring-loaded MZI. An index sensing based technique using an MZI loaded with a ring resonator with a moderate Q-factor of 2400 can yield a sensitivity of 28 fm/root Hz and 6.5 x 10(-6)%/root Hz for displacement and strain, respectively. Though any phase-sensitive integrated-photonic device could be used for optical transduction, here we show that optimal sensitivity is achievable by combining resonance with phase sensitivity. (C) 2018 Optical Society of America

Item Type:	Journal Article
Publication:	OPTICS LETTERS
Publisher:	OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
Additional Information:	Copy right for the article belong to OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	08 Mar 2018 19:08
Last Modified:	08 Mar 2018 19:08
URI:	http://eprints.iisc.ac.in/id/eprint/59117

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