A plasma photonic crystal bandgap device
Abstract
A fully tunable plasma photonic crystal is used to control the propagation of free space electromagnetic waves in the S to X bands of the microwave spectrum. An array of discharge plasma tubes forms a simple square crystal structure with the individual plasma dielectric constant tuned through variation in the plasma density. We show, through simulations and experiments, that transverse electric mode bandgaps exist, arising from the positive and negative dielectric constant regimes of the plasma, and that the respective bandgap frequencies can be shifted through changing the dielectric constant by varying discharge current density.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 18, 2016
- Source ID
- 10.1063/1.4946805
Entities
People
- Benjamin Wang
- M. A. Cappelli
Organizations
- Air Force Office of Scientific Research
- Stanford University