Open AccessNonlinearity of optimized silicon photonic slot waveguides
Author(s) -
Paul Müellner,
M. Wellenzohn,
Rainer Hainberger
Publication year - 2009
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.17.009282
Subject(s) - refractive index , silicon , optics , materials science , nonlinear system , silicon photonics , nonlinear optics , optoelectronics , photonics , layer (electronics) , physics , laser , nanotechnology , quantum mechanics
In this numerical study, we show that by exploiting the advantages of the horizontal silicon slot wave-guide structure the nonlinear interaction can be significantly increased compared to vertical slot waveguides. The deposition of a 20 nm thin optically nonlinear layer with low refractive index sandwiched between two silicon wires of 220 nm width and 205 nm height could enable a nonlinearity coefficient gamma of more than 2 x 10(7) W(-1)km(-1).