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首页> 外文期刊>Physica, C. Superconductivity and its applications >Voltage-tunable YBCO Josephson mixer, operating in self-pumping mode at 750-970 GHz
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Voltage-tunable YBCO Josephson mixer, operating in self-pumping mode at 750-970 GHz

机译：电压可调YBCO约瑟夫森混频器，在750-970 GHz的自泵模式下运行

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摘要

Voltage-tunable response on noise signal from high-T-C Josephson device, operating in self-pumping mixing mode was experimental studied by Fourier transform spectroscopy technique at frequency band f = 750-970 GHz. Experimental device was bicrystal YBCO junction fabricated on sapphire substrate with a patterned log-periodic antenna in electrodes, exhibiting RSJ-Iike I-V curves with ICRN product of order 1.8 mV at temperature T = 12.5 K. The intermediate frequency signal was amplified by a cooled low noise balanced 1-2 GHz HEMT amplifier. The clear double-side band mixer response at any of fixed bias voltage in the range 1.65-2.1 mV, strictly corresponded to Josephson frequency/voltage relation, was observed at Fourier transform spectrograms. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 4]
机译：通过傅立叶变换光谱技术在f = 750-970 GHz频段上，对以自泵浦混合模式工作的高T-C Josephson器件的噪声信号进行电压可调响应的实验。实验装置是在蓝宝石衬底上制作的双晶YBCO结，电极上带有图案化的对数周期天线，在温度T = 12.5 K时表现出RSJ-Iike IV曲线，ICRN乘积为1.8 mV。噪声平衡的1-2 GHz HEMT放大器。在傅立叶变换频谱图上观察到在1.65-2.1 mV范围内的任何固定偏置电压下，严格对应于约瑟夫森频率/电压关系的清晰的双边带混频器响应。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：4]

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