CUED Publications database

(Invited) Emission distributivities from novel geometrical antennas

Klemm, R and Reid, C and Wilson, W and Morales, M and Campbell, T and Cerkoney, D and Delfanazari, K and Kashiwagi, T and Minami, H and Hattori, T and Kadowaki, K (2014) (Invited) Emission distributivities from novel geometrical antennas. In: The 9th International Symposium on Intrinsic Josephson Effects and THz Plasma Oscillations in High-Tc Superconductors (THz-PLASMA 2014), 2014-11-30 to 2014-12-3, Kyoto, Japan.

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Abstract

We model the angular distributions of the emissions from the transverse magnetic cavity modes of two types of antenna shapes. The six degenerate fundamental cavity excitations of a thin equilateral triangular antenna are studied using the magnetic Love equivalence principle [1,2,3], and used to fit the angular distributions of the emissions observed in two planes from such antennas consisting of mesas fabricated from the high-temperature superconductor Bi2Sr2CaCu2O8+Ⴅ (Bi2212) [2,3]. Similar fits are obtained for the dual-plane emissions detected from a thin acute isosceles triangular mesa antenna [4], which we model as a narrow-angle pie-shaped wedge antenna. The predictions for the TM(2,0)o cavity mode are found to be in good agreement with experiment [4] . Then we study the many predicted TM cavity modes present in thin pie-shaped wedge antennas of various wedge angles. Three-dimensional plots of some of the predicted angular distributions of the emissions from a variety of modes in a variety of pie-shaped wedge cavities are presented. References [1] R. A. Klemm and K. Kadowaki, J. Phys.: Condens. Matter 21, 375701 (2010). [2] R. A. Klemm et al., Physica C 491, 30 (2013). [3] K. Delfanazari et al., Physica C 491, 16 (2013). [4] K. Delfanazari et al., Opt. Express 21, 2171 (2013).

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 20:09
Last Modified: 18 Aug 2020 12:28
DOI: