Acquisition and analysis of Terahertz Time Domain imaging and sensing

Author

Ajilore, Babatunde ; Baughman, William ; Wilbert, Shawn D. ; Kim, Jongsu ; Kung, Patrick ; Kim, Seongsin Margaret

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Alabama, Tuscaloosa, AL, USA

fYear

2010

fDate

18-21 March 2010

Firstpage

308

Lastpage

311

Abstract

We present results of an acquisition of Terahertz imaging and its analysis in terms of frequency based on a Time Domain Terahertz Spectroscopy System. THz radiation was generated using a photoconductive antenna based on LT-GaAs and was detected by the electro-optical sampling in a ZnTe crystal. Broadband THz pulses were obtained in the range from 0.1 THz to 4 THz, with a peak intensity at 1 THz. The full transmission spectrum for different materials was measured, and frequency-dependent imaging characteristics were analyzed.

Keywords

III-V semiconductors; antenna radiation patterns; gallium arsenide; photoconducting devices; terahertz spectroscopy; terahertz wave imaging; time-domain analysis; GaAs; electrooptical sampling; frequency 0.1 THz to 4 THz; frequency-dependent imaging characteristics; full transmission spectrum; photoconductive antenna; terahertz time domain imaging; time domain terahertz spectroscopy system; Crystalline materials; Frequency; Image analysis; Optical imaging; Photoconductivity; Radiation detectors; Sampling methods; Spectroscopy; Time domain analysis; Zinc compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

IEEE SoutheastCon 2010 (SoutheastCon), Proceedings of the

Conference_Location

Concord, NC

Print_ISBN

978-1-4244-5854-7

Type

conf

DOI

10.1109/SECON.2010.5453865

Filename

5453865