[8a-E218-1~11] 13.6 Nanostructures, quantum phenomena, and nano quantum devices

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[8a-E218-6] Narrowband Fabry–Pérot Modes Enabled by a Babinet Complementary Thick Metal Mesh Structure

〇(M1)Shuhei Matsuyama¹, Masahiro Ueda¹, Yasuyuki Sakanaka¹, Miyuu Matsunaga¹, Yoshinori Shohmitsu², Toyoaki Suzuki³, Takehiko Wada⁴, Toshihiro Nakaoka¹ (1.Sophia Univ., 2.QUP, 3.JAXA, 4.NAOJ)

Keywords:

Terahertz,Band-pass filter

We investigated the effect of metal mesh thickness on the transmission spectra of a THz-band band-pass filter consisting of a deep-etched silicon structure and Babinet-complementary metal meshes using three-dimensional electromagnetic simulations. The results show that increasing the metal mesh thickness reduces the full width at half maximum (FWHM) of the transmission peak. Using a Fabry–Pérot resonator model, we show that the increase in metal mesh reflectance with increasing thickness is responsible for the observed reduction in FWHM.