Theoretical and experimental investigation of straight defect waveguides in AlGaAs-based air-bridge-type two-dimensional photonic crystal slabs
- 19 December 2001
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 79 (26) , 4286-4288
- https://doi.org/10.1063/1.1427752
Abstract
A detailed investigation was undertaken from both theoretical and experimental perspectives of straight defect waveguides in an AlGaAs-based air-bridge-type two-dimensional photonic crystal slab. Optical propagation properties were obtained by two methods: measurement of transmission spectra at wavelengths ranging from 850 to 1100 nm, and with plan-view observations of the optical beam trace along the waveguide measured with an infrared-vidicon camera. Three-dimensional finite-difference time-domain simulations for the band structure and transmission spectra in the air-bridge slab with and without defect waveguides resulted in the appearance of defect propagation modes specific to the defect waveguide, between two slab modes for the defect-free photonic crystal slab. These defect modes were experimentally identified in the measured transmission spectra.Keywords
This publication has 10 references indexed in Scilit:
- Transmittance and time-of-flight study ofphotonic crystal waveguidesPhysical Review B, 2001
- Confined Band Gap in an Air-Bridge Type of Two-Dimensional AlGaAs Photonic CrystalPhysical Review Letters, 2001
- Block-iterative frequency-domain methods for Maxwell's equations in a planewave basisOptics Express, 2001
- Design and fabrication of silicon photonic crystal optical waveguidesJournal of Lightwave Technology, 2000
- Waveguiding in planar photonic crystalsApplied Physics Letters, 2000
- Demonstration of highly efficient waveguiding in a photonic crystal slab at the 15-µm wavelengthOptics Letters, 2000
- Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguideApplied Physics Letters, 2000
- Guided modes in photonic crystal slabsPhysical Review B, 1999
- Observation of light propagation in photonic crystaloptical waveguides with bendsElectronics Letters, 1999
- Photonic crystals: putting a new twist on lightNature, 1997