High Speed THz Spectroscopy Using Fast Scanning Fabry-Perot
Document Type
Article
Publication Date
1-1-2011
Identifier/URL
43027463 (Pure)
Abstract
A fast-scanning tunable Fabry-Perot filter has been developed for signature identification in reflective THz sensor systems. The reflectors are metal mesh filters having reflectivity between 0.90 and 0.95, depending on the specific frequency. A demonstration of the filter has been carried out at 530 GHz with a resolution of ∼10 GHz (Q ∼50), a scan range of ∼50 GHz, and a scan time of 0.5 seconds. The higher-order harmonic longitudinal modes are blocked by a lower-Q metamaterial bandpass filter located outside the Fabry Perot and having no harmonic passbands. This will enable high-rate THz spectroscopy without frequency ambiguity.
Repository Citation
Mathew, R. G.,
Middendorf, J. R.,
& Brown, E. R.
(2011). High Speed THz Spectroscopy Using Fast Scanning Fabry-Perot. 2011 International Conference on Infrared, Millimeter, and Terahertz Waves.
https://corescholar.libraries.wright.edu/physics/1234
DOI
10.1109/irmmw-THz.2011.6104887
