TY - GEN
T1 - High Speed THz Spectroscopy Using Fast Scanning Fabry-Perot
AU - Middendorf, John R.
AU - Brown, Elliott R.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/84855884588
UR - https://www.scopus.com/inward/citedby.url?scp=84855884588&partnerID=8YFLogxK
U2 - 10.1109/irmmw-THz.2011.6104887
DO - 10.1109/irmmw-THz.2011.6104887
M3 - Conference contribution
AN - SCOPUS:84855884588
SN - 9781457705090
T3 - IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves
BT - IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves
T2 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011
Y2 - 2 October 2011 through 7 October 2011
ER -