Abstract
Undesired reflection caused by impedance mismatch can lead to significant power loss and other unwanted effects. In the terahertz regime, anti-reflection method has evolved from simple quarter-wave antireflection coating to sophisticated metamaterial device and photonic structures. In this paper, we examined and compared the theories and techniques of several antireflection implementations for terahertz waves, with emphasis on gradient index photonic structures. A comprehensive study is presented on the design, fabrication and evaluation of this new approach.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 243-262 |
| Number of pages | 20 |
| Journal | Frontiers of Optoelectronics |
| Volume | 7 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jun 2014 |
Keywords
- anti-reflection
- gradient index
- photonic structure
- terahertz
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering