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Manipulation of extinction features in frequency combs through the usage of graphene

Barturen, Mariana, Abadia, Nicolas, Milano, Julián, Costanzo Caso, Pablo A. and Plant, David V. 2018. Manipulation of extinction features in frequency combs through the usage of graphene. Optics Express 26 (12) , pp. 15490-15502. 10.1364/OE.26.015490

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Abstract

Lately, the integration of two-dimensional materials into semiconductor devices has allowed the modification of their effective index by simply applying a modest voltage (between 0 and 3 volts). In this work, we present a device composed of two evanescently coupled silicon microring resonators where both rings have a graphene layer on top. This design is aimed to produce frequency combs with transmission characteristics controlled upon voltage application to the graphene layer. We numerically analyze the device response as a function of the incident wavelength and applied voltage. The results showed a low input intensity (0.6 GW/cm2) needed and a rapid response time (0.1 μs), in comparison to devices controlled by heat injection.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Physics and Astronomy
Publisher: Optical Society of America
ISSN: 1094-4087
Date of First Compliant Deposit: 9 November 2018
Date of Acceptance: 17 April 2018
Last Modified: 14 Dec 2018 16:05
URI: http://orca.cf.ac.uk/id/eprint/116641

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