ph5b00209_si_001pdf. (1.2 MB)
Photonic and Plasmonic Guided Modes in Graphene–Silicon Photonic Crystals
Version 2 2015-12-17, 10:42
Version 1 2015-10-28, 14:05
journal contribution
posted on 2015-12-17, 10:42 authored by Tingyi Gu, Andrei Andryieuski, Yufeng Hao, Yilei Li, James Hone, Chee Wei Wong, Andrei Lavrinenko, Tony Low, Tony F. HeinzWe
report the results of systematic studies of plasmonic and photonic
guided modes in large-area single-layer graphene integrated into a
nanostructured silicon substrate. The interaction of light with graphene
and substrate photonic crystals can be classified in distinct regimes
depending on the relation of the photonic crystal lattice constant
and the relevant modal wavelengths, that is, plasmonic, photonic,
and free-space. By optimizing the design of the substrate, these resonant
modes can increase the absorption of graphene in the infrared, facilitating
enhanced performance of modulators, filters, sensors, and photodetectors
utilizing silicon photonic platforms.