• 文献标题:   Integrated high responsivity photodetectors based on graphene/glass hybrid waveguide
  • 文献类型:   Article
  • 作  者:   WANG GC, DAI TG, LVY ZT, HAO YL, YU H, WANG YH, LI YB, JIANG XQ, YANG JY
  • 作者关键词:  
  • 出版物名称:   OPTICS LETTERS
  • ISSN:   0146-9592 EI 1539-4794
  • 通讯作者地址:   Zhejiang Univ
  • 被引频次:   0
  • DOI:   10.1364/OL.41.004214
  • 出版年:   2016

▎ 摘  要

We propose and fabricate an integrated graphene/glass hybrid photodetector (PD) with high responsivity and broad spectral bandwidth. The glass straight waveguide enables high absorption of the evanescent light of transverse magnetic (TM) mode propagating parallel to the single layer of graphene. It is based on the mechanism of light-induced change in conductance. As a result, a responsivity as high as 0.72 A/W at a low bias voltage of -0.1 V for a wide wavelength range from 1510 to 1630 nm is experimentally obtained. The proposed graphene/glass hybrid PD could find important applications in graphene-based photonic integrated circuits. (C) 2016 Optical Society of America