Defect studies in a two-dimensional periodic photonic lattice
Structures arranged so as to exhibit a complete photonic bandgap (PGB) have been proposed for a variety of technological applications. McCall et al. have reported an experimental and numerical investigation of microwave propagation in a two-dimensional array consisting of low-loss high-dielectric-constant cylinders. This system was shown to have a complete PBG, as well as a defect mode. Here we present an experimental investigation of the properties of a variety of defect modes, created by altering a region in the otherwise periodic lattice of dielectric cylinders. These alterations include removing one or more cylinders from the lattice in a variety of spatial separations and orientations, and also a procedure whereby the defect mode frequency may be tuned by slightly perturbing those cylinders closest to the defect region. The implication of these results for supercell numerical simulations and potential technical applications are discussed
Duke Scholars
Published In
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Optics
- 5108 Quantum physics
- 5102 Atomic, molecular and optical physics
- 1007 Nanotechnology
- 0206 Quantum Physics
- 0205 Optical Physics
Citation
Published In
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Optics
- 5108 Quantum physics
- 5102 Atomic, molecular and optical physics
- 1007 Nanotechnology
- 0206 Quantum Physics
- 0205 Optical Physics