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Proceedings Paper

Broadband and enhanced-output-power terahertz-wave emitter based on slot-antenna-integrated uni-traveling-carrier photodiode
Author(s): Hiroshi Ito; Toshihide Yoshimatsu; Hiroshi Yamamoto; Tadao Ishibashi
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Paper Abstract

Resonant slot-antennas were integrated with uni-traveling-carrier photodiodes (UTC-PDs) for increasing THz-wave output power with relatively broad bandwidths. The measured output power was two to three times larger at its peak frequency than that of a non-resonant bowtie-antenna-integrated device. Output power enhancement was achieved at frequencies from 900 GHz to 1.6 THz for a narrow-slot UTC-PD and from 350 to 850 GHz for a wide-slot UTC-PD. Typical output power was 3.5 μW at 1.25 THz and 28 μW at 700 GHz for a photocurrent of 10 mA with a bias voltage of -0.4 V.

Paper Details

Date Published: 31 August 2015
PDF: 7 pages
Proc. SPIE 9585, Terahertz Emitters, Receivers, and Applications VI, 958506 (31 August 2015); doi: 10.1117/12.2186925
Show Author Affiliations
Hiroshi Ito, Kitasato Univ. (Japan)
Toshihide Yoshimatsu, NTT Corp. (Japan)
Hiroshi Yamamoto, Kitasato Univ. (Japan)
Tadao Ishibashi, NTT Electronics Technology Corp. (Japan)


Published in SPIE Proceedings Vol. 9585:
Terahertz Emitters, Receivers, and Applications VI
Manijeh Razeghi; Alexei N. Baranov; John M. Zavada; Dimitris Pavlidis, Editor(s)

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