[21p-A302-1~9] 11.1 Fundamental properties

△ [21p-A302-6] A simulation study of the terahertz emission from Bi-2212 cross-whisker devices

〇Yoshito Saito^1,2, Itsuhiro Kakeya³, Yoshihiko Takano^1,2 (1.NIMS, 2.Univ. of Tsukuba, 3.Kyoto Univ.)

Keywords:Josephson junction, terahertz

Recently, we succeeded in terahertz oscillation using Bi-2212 whisker crystals and found that its refractive index is different from that of bulk single crystals through polarization measurement using a wire grid. In order to verify the validity of the polarization measurement, we simulated the radiation from a perfectly conducting patch antenna with the same dimensions as the terahertz oscillation intrinsic junction row using a three-dimensional electromagnetic field analysis software and compared it with the experimental data. As a result, it was confirmed that the principal axes of the polarization ellipse have an offset from the horizontal or vertical direction when the oscillation frequency deviates from the cavity resonance frequency.