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

Barturen, Mariana, Abadia, Nicolas ORCID:, 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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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: Optica
ISSN: 1094-4087
Date of First Compliant Deposit: 9 November 2018
Date of Acceptance: 17 April 2018
Last Modified: 24 Oct 2022 08:02

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