DocumentCode
2971001
Title
Spatial frequency filter for real-time THz imaging
Author
Hattori, T. ; Sakamoto, M. ; Rungsawang, R.
Author_Institution
Inst. of Appl. Phys., Tsukuba Univ., Japan
Volume
2
fYear
2005
fDate
19-23 Sept. 2005
Firstpage
333
Abstract
In real-time THz imaging using intense broadband THz pulses, low-frequency THz components degrade the contrast and resolution of the THz images. We improved the contrast by spatially filtering out low-frequency components using the frequency dependence of the beam waist size of a focused THz beam.
Keywords
high-pass filters; optical collimators; spatial filters; submillimetre wave filters; submillimetre wave imaging; beam waist size; focused THz beams; frequency dependence; low-frequency submillimetre wave components; real-time THz imaging; spatial frequency filters; Aluminum; Electrodes; Filtering; Focusing; Frequency; Mirrors; Optical imaging; Optical pulses; Spatial filters; Spatial resolution;
fLanguage
English
Publisher
ieee
Conference_Titel
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN
0-7803-9348-1
Type
conf
DOI
10.1109/ICIMW.2005.1572548
Filename
1572548
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