Polarization state measurement of terahertz electromagnetic radiation by three-contact photoconductive antenna | Zendy

Hiroyuki Makabe | Zendy; Yuichi Hirota | Zendy; Masahiko Tani | Zendy; Masanori Hangyo | Zendy

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Polarization state measurement of terahertz electromagnetic radiation by three-contact photoconductive antenna

Author(s) -

Hiroyuki Makabe,

Yuichi Hirota,

Masahiko Tani,

Masanori Hangyo

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.011650

Subject(s) - polarizer , terahertz radiation , optics , terahertz spectroscopy and technology , photoconductivity , materials science , polarization (electrochemistry) , optoelectronics , terahertz gap , photomixing , terahertz time domain spectroscopy , spectroscopy , ellipsometry , circular polarization , physics , birefringence , far infrared laser , laser , thin film , terahertz metamaterials , microstrip , chemistry , quantum mechanics , nanotechnology

We have fabricated a three-contact photoconductive antenna for the polarization-sensitive detection of terahertz electromagnetic radiation. Taking into account all three photoconductive signal current components, this three-contact photoconductive antenna can measure the polarization state of pulsed THz radiation at an accuracy comparable to that achieved using the conventional method which employs a set of wire-grid polarizers. The three-contact photoconductive receiver may be useful for polarization-sensitive spectroscopy such as vibrational circular dichroism spectroscopy and ellipsometry in the THz frequency region.

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