Open AccessHybrid Si-VO_2-Au optical modulator based on near-field plasmonic coupling
Author(s) -
Petr Markov,
Kannatassen Appavoo,
Richard F. Haglund,
Sharon M. Weiss
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.006878
Subject(s) - materials science , plasmon , optics , refractive index , extinction ratio , optoelectronics , electric field , optical modulator , modulation (music) , coupling (piping) , photonics , phase modulation , physics , wavelength , quantum mechanics , phase noise , acoustics , metallurgy
We present a computational design for an integrated electro-optic modulator based on near-field plasmonic coupling between gold nanodisks and a thin film of vanadium dioxide on a silicon substrate. Active modulation is achieved by applying a time-varying electric field to initiate large changes in the refractive index of vanadium dioxide. Significant decrease in device footprint (200 nm x 560 nm) and increase in extinction ratio per unit length (9 dB/µm) compared to state-of-the-art photonic and plasmonic modulators are predicted.