[19a-B203-1~9] 3.8 Terahertz technologies (formerly 3.9)

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[19a-B203-5] Photonic band structure of terahertz bandpass filter using Babinet’s complementary double metal mesh structure

〇(B)Masahiro Ueda¹, Riki Chin¹, Koudai Iijima¹, Kasumi Miyata¹, Lisa Toyoshima¹, Yoshinori Shohmitsu³, Toyoaki Suzuki², Takehiko Wada⁴, Toshihiro Nakaoka¹ (1.Sophia Univ., 2.ISAS/JAXA, 3.QUP/KEK, 4.NAOJ)

Keywords:

Band-pass filter,Metal mesh,Sub-wavelength structure

Astronomical observations in the far-infrared to submillimeter wavelength band (1 THz-10 THz)are essential for elucidating the formation of planetary systems and the origin of life. This research group has proposed a robust bandpass filter operating in the terahertz band with a Babinet-complementary metal mesh structure. A photonic band structure is a fundamental indicator for identifying and analysing optical modes. In this study, obtained photonic band structure from the incident angle dependence of the reflection spectrum has been compared with a three-dimensional electromagnetic field simulation.