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

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.
Authors:
 [1] ;  [2] ;  [2] ; ;  [3] ; ;  [1] ;  [2] ;  [4] ;  [5]
  1. NTT Nanophotonics Center, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan)
  2. (Japan)
  3. NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan)
  4. NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan)
  5. Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555 (Japan)
Publication Date:
OSTI Identifier:
22283025
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; DAMPING; GRAPHENE; LENGTH; QUALITY FACTOR; RESONATORS; SILICON; VARIATIONS