Tsujimoto, Manabu and Kaneko, Youta and Kuwano, Genki and Nagayama, Kanae and Imai, Takayuki and Ono, Yukino and Kusunose, Shinji and Kashiwagi, Takanari and Minami, Hidetoshi and Kadowaki, Kazuo and Şimşek, Yılmaz and Welp, Ulrich and Kwok, Wai Kwong (2021) Design and characterization of microstrip patch antennas for high-Tc superconducting terahertz emitters. Optics Express, 29 (11). pp. 16980-16990. ISSN 1094-4087
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Official URL: https://dx.doi.org/10.1364/OE.420417
Abstract
We designed and characterized a microstrip pattern of planar patch antennas compatible with a cuprate high-Tc superconducting terahertz emitter. Antenna parameters were optimized using an electromagnetic simulator. We observed repeatable sub-terahertz emissions from each mesa fabricated on identical Bi2Sr2CaCu2O8+δ base crystals in a continuous frequency range of 0.35–0.85 THz. Although there was no significant output power enhancement, a plateau behavior at a fixed frequency was observed below 40 K, indicating moderate impedance matching attributable to the ambient microstrip pattern. A remarkably anisotropic polarization at an axial ratio of up to 16.9 indicates a mode-locking effect. Our results enable constructing compactly assembled, monolithic, and broadly tunable superconducting terahertz sources.
| Item Type: | Article |
|---|---|
| Divisions: | Sabancı University Nanotechnology Research and Application Center |
| Depositing User: | Yılmaz Şimşek |
| Date Deposited: | 03 Sep 2022 22:00 |
| Last Modified: | 03 Sep 2022 22:00 |
| URI: | https://research.sabanciuniv.edu/id/eprint/43475 |
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