Spectral Characterization Of Planar Resonators By Terahertz Josephson Spectroscopy

A. Snezhko,O. Volkov, V. Gubankov,I. Gundareva,Y. Divin,V. Pavlovskiy,V. Pokalyakin

2015 40TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ)（2015）

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摘要

Here, we report the results of spectral analysis of planar open ring resonators by Josephson spectroscopy. Square shape resonators on separate wafers were positioned in the vicinity of YBa2Cu3O7-x bicrystal Josephson junction (JJ). The DC characteristics of JJ demonstrated specific features related to resonant modes excitation. Resonators of various sizes were analyzed, and excitation of LC-modes at frequencies from 50 GHz to 700 GHz were observed. Resonator quality factors were estimated using resistively shunted model of JJ and resonator equivalent circuit.

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关键词

terahertz Josephson spectroscopy,spectral characterization,spectral analysis,planar open ring resonator,square shape resonators,bicrystal Josephson junction,DC characteristics,resonant mode excitation,LC-mode,quality factor,resonator equivalent circuit,frequency 50 GHz to 700 GHz,YBa2Cu3O7-x

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