Influence of graphene on quality factor variation in a silicon ring resonator

Rai Kou; Shinichi Tanabe; Tai Tsuchizawa; Tsuyoshi Yamamoto; Hiroki Hibino; Hirochika Nakajima; Koji Yamada

doi:10.1063/1.4867472

Influence of graphene on quality factor variation in a silicon ring resonator

Rai Kou, Shinichi Tanabe, Tai Tsuchizawa, Tsuyoshi Yamamoto, Hiroki Hibino, Hirochika Nakajima, Koji Yamada

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Selectively patterned graphene is integrated onto a silicon ring resonator to investigate the quality factor (Q factor) variation. The Q factor sharply decreases from 7900 to 1200 as the patterned graphene length increases from 0 to 20 μm. A numerical estimation, which takes into account optical absorption by graphene, shows an exponential damping of the Q factor with increasing graphene length and is consistent with the experimental result. We expect these fundamental characterizations to be helpful in developing graphene-integrated silicon photonics applications.

Original language	English
Article number	091122
Journal	Applied Physics Letters
Volume	104
Issue number	9
DOIs	https://doi.org/10.1063/1.4867472
Publication status	Published - 2014

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Tanabe, Shinichi

AU - Tsuchizawa, Tai

AU - Yamamoto, Tsuyoshi

AU - Hibino, Hiroki

AU - Nakajima, Hirochika

AU - Yamada, Koji

PY - 2014

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Influence of graphene on quality factor variation in a silicon ring resonator

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