Presentation 2020-01-31
Comparative Study of THz sensors with InSb elements
Jun Nakano, Jun Shibayama, Junji Yamauchi, Hisamatsu Nakano,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We investigate and compare terahertz (THz) sensors with indium antimonide (InSb) elements. THz sensors with cross-dipole, disk and sphere elements made of InSb are analyzed using the finite-difference time-domain method. The full width at half maximum (or half minimum), sensitivity, and figure of merit (FoM) are used to quantitatively evaluate the sensor performance. First, we investigate the transmittance of the sensors with respect to changes in the refractive index of the analyte. As the refractive index is increased, the peak frequency shifts to the low frequency side. This peak frequency shift leads to a possibility to detect the value of the refractive index. Next, it is shown that the FoM can be improved by adjusting the length of each element. Finally, we compare the performance of the three sensors. It is shown that the cross-dipole sensor provides a high FoM compared to the disk and sphere sensors.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Periodic boundary condition (PBC) / Indium antimonide (InSb) / Terahertz (THz) wave / Finite-difference time-domain (FDTD) method / Figure of merit (FoM)
Paper # EST2019-97
Date of Issue 2020-01-23 (EST)

Conference Information
Committee EST
Conference Date 2020/1/30(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Beppu International Convention Center
Topics (in Japanese) (See Japanese page)
Topics (in English) Simulation Technique, etc.
Chair Akimasa Hirata(Nagoya Inst. of Tech.)
Vice Chair Shinichiro Ohnuki(Nihon Univ.) / Masayuki Kimishima(Advantest) / Jun Shibayama(Hosei Univ.)
Secretary Shinichiro Ohnuki(National Inst. of Tech.,Sendai College) / Masayuki Kimishima(Aoyama Gakuin Univ.) / Jun Shibayama
Assistant Takahiro Ito(Nagoya Inst. of Tech.) / Kazuhiro Fujita(Fujitsu)

Paper Information
Registration To Technical Committee on Electronics Simulation Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Comparative Study of THz sensors with InSb elements
Sub Title (in English)
Keyword(1) Periodic boundary condition (PBC)
Keyword(2) Indium antimonide (InSb)
Keyword(3) Terahertz (THz) wave
Keyword(4) Finite-difference time-domain (FDTD) method
Keyword(5) Figure of merit (FoM)
1st Author's Name Jun Nakano
1st Author's Affiliation Hosei University(Hosei Univ.)
2nd Author's Name Jun Shibayama
2nd Author's Affiliation Hosei University(Hosei Univ.)
3rd Author's Name Junji Yamauchi
3rd Author's Affiliation Hosei University(Hosei Univ.)
4th Author's Name Hisamatsu Nakano
4th Author's Affiliation Hosei University(Hosei Univ.)
Date 2020-01-31
Paper # EST2019-97
Volume (vol) vol.119
Number (no) EST-407
Page pp.pp.91-96(EST),
#Pages 6
Date of Issue 2020-01-23 (EST)