Open AccessCoherent perfect absorption and transparency in a nanostructured graphene film
Author(s) -
Jianfa Zhang,
Chucai Guo,
Ken Liu,
Zhihong Zhu,
Weimin Ye,
Xiaodong Yuan,
Shiqiao Qin
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.012524
Subject(s) - graphene , optics , materials science , plasmon , optoelectronics , absorption (acoustics) , electromagnetically induced transparency , modulation (music) , phase modulation , optical modulator , phase noise , physics , nanotechnology , acoustics
We show numerically that both coherent perfect absorption and transparency can be realized in a monolayer graphene. The graphene film, doped and patterned with a periodical array of holes, can support plasmonic resonances in the Mid-infrared range. Under the illumination of two counter-propagating coherent optical beams, resonant optical absorption may be tuned continuously from 99.93% to less than 0.01% by controlling their relative phase which gives a modulation contrast of 40 dB (about 30 dB for transmission). The phenomenon provides a versatile platform for manipulating the interaction between light and graphene and may serve applications in optical modulators, transducers, sensors and coherent detectors.