Abstract
In this letter we present a switchable THz notch filter. The filter contains a liquid crystal layer that acts as a half wave retarder in one state and as an isotropic layer in the other state. The device combines three unique properties: it can be switched electrically, it provides a filter depth of 35 dB at 350 GHz and it can be tuned over wide frequency range from 350 GHz to 700 GHz.
| Original language | English |
|---|---|
| Pages (from-to) | 327-332 |
| Number of pages | 6 |
| Journal | Journal of Infrared, Millimeter, and Terahertz Waves |
| Volume | 33 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2012 |
| Externally published | Yes |
Bibliographical note
Funding Information:Acknowledgement Nico Vieweg thanks the Studienstiftung des deutschen Volkes and the Braunschweig international graduate school of metrology for funding.
Keywords
- Birefringence
- Liquid crystals
- Switchable terahertz devices
ASJC Scopus subject areas
- Radiation
- Instrumentation
- Condensed Matter Physics
- Electrical and Electronic Engineering
Fingerprint
Dive into the research topics of 'Electrically tunable terahertz notch filters'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver