Dielectric Two-dimensional Photonic Crystals: Modeling and Measurement
Abstract
We have studied dielectric two-dimensional photonic crystals with a triangular lattice embedded in an optical waveguide by modeling and by variable wavelength transmission measurements. Employing an analysis program which utilizes a finite difference time domain technique, we have modeled the triangular lattice of our samples. The samples have a pore diameter of 146 nm and pitch of 260 nm etched into a planar waveguide structure with a silicon nitride core. The core is 250 nm thick and is sandwiched between a 1.8 μ m silicon dioxide buffer layer and a 75 nm silicon dioxide cladding layer. A 2D model is used to calculate the bandgap and the transmission as a function of wavelength. In addition, the electric field above the sample is obtained in order to understand near field measurements. Transmission measurements vs. wavelength from 540 to 725 nm, and several reflection measurements are reported for these samples and compared to the model calculations.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2000
- Bibcode:
- 2000APS..MARK19010S