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Research
- Photoconductive Antenna for Generation and Detection of Terahertz
Radiation
Research Topics
The photoconductive antenna can radiate a broadband terahertz wave
with relatively high efficiency. Conventional design methods have
used the simple analysis model of a dipole antenna in open space
filled by an equivalent dielectric material. As the model size becomes
large, the analysis of the full model becomes time-consuming and
cumbersome. However, it is necessary to evaluate a more exact analysis
model for the precise array design. This research presents the analysis
of the single dipole element located at the interface between a
half-free space and a dielectric material as the first step of the
design. A perfectly matched layer (PML) is used for the calculation
of the frequency spectrum. The antennas are manufactured by super-fine
ink jet technology, and the frequency spectra are measured by terahertz
time-domain spectroscopy.
1. Katsunari Irie, Mikio Saigusa, Keisuke Takano,
Masanori Hangyo, John Young, Kohji Yamamoto, Masahiko Tani, Takehito
Suzuki, "Analysis and Estimation of Spectrum Characteristics
for Dipole Photoconductive Antenna that includes Photocurrent and
Receiving Antenna Effects," IRMMW-THz, Tue-C-2-4, Wollongong,
Australia, Sep. 23-28, 2012.
2. Katsunari Irie, Mikio Saigusa, Keisuke Takano, Masanori Hangyo,
John Young, Kohji Yamamoto, Masahiko Tani, Takehito Suzuki, "Analysis
and Estimation of Spectrum Characteristics for Dipole Photoconductive
Antenna including Photocurrent and Receiving Antenna ," The
59th Spring Meeting, 2012; The Japan Society of Applied Physics
and Related Societies, 17p-E8-10, Waseda University, Mar. 2012.
3 . Katsunari Irie, Keisuke Takano, Masanori Hangyo, Kohji Yamamoto,
Masahiko Tani, Takehito Suzuki, ‘‘Frequency Spectrum on Photoconductive
Antenna from Analysis including Dielectric Layer and Substrate Lens,’’
The 16th Conference of IEICE Student Activity Committee, Tokyo Section,
pp.61, March 12, 2011.
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