Open AccessEfficient control of a 3D optical mode using a thin sheet of transformation optical medium
Author(s) -
Rasta Ghasemi,
PaulHenri Tichit,
Aloyse Degiron,
Anatole Lupu,
André de Lustrac
Publication year - 2010
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.18.020305
Subject(s) - optics , planar , transformation optics , metamaterial , materials science , silicon on insulator , slab , waveguide , optoelectronics , physics , silicon , computer science , computer graphics (images) , geophysics
We report on a mode adapter that transitions light between two SOI waveguides having different widths. The device has been designed using a two-dimensional embedded coordinate transformation and consists of a thin sheet of a controlled anisotropic material directly placed on top of the Si slab. We demonstrate that this layer effectively controls the flow of energy propagating in the Si slab by performing three-dimensional full-wave simulations. The proposed geometry can be implemented with planar optical metamaterials for various applications in guided optics.