Experimental investigation of a broadband high-temperature superconducting terahertz mixer operating at temperatures between 40 and 77 K

Xiang Gao; Jia Du; Ting Zhang; Y. Jay Guo; Cathy P. Foley

doi:10.1007/s10762-017-0422-x

Experimental investigation of a broadband high-temperature superconducting terahertz mixer operating at temperatures between 40 and 77 K

Xiang Gao^*, Jia Du, Ting Zhang, Y. Jay Guo, Cathy P. Foley

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

This paper presents a systematic investigation of a broadband thin-film antenna-coupled high-temperature superconducting (HTS) terahertz (THz) harmonic mixer at relatively high operating temperature from 40 to 77 K. The mixer device chip was fabricated using the CSIRO established step-edge YBa₂Cu₃O_7-x (YBCO) Josephson junction technology, packaged in a well-designed module and cooled in a temperature adjustable cryocooler. Detailed experimental characterizations were carried out for the broadband HTS mixer at both the 200 and 600 GHz bands in harmonic mixing mode. The DC current-voltage characteristics (IVCs), bias current condition, local oscillator (LO) power requirement, frequency response, as well as conversion efficiency under different bath temperatures were thoroughly investigated for demonstrating the frequency down-conversion performance.

Original language	English
Pages (from-to)	1357–1367
Number of pages	11
Journal	Journal of Infrared, Millimeter, and Terahertz Waves
Volume	38
Issue number	11
Early online date	2017
DOIs	https://doi.org/10.1007/s10762-017-0422-x
Publication status	Published - Nov 2017
Externally published	Yes

Keywords

Terahertz
Harmonic mixer
High-temperature superconducting Josephson junction
Broadband mixer

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10.1007/s10762-017-0422-x

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title = "Experimental investigation of a broadband high-temperature superconducting terahertz mixer operating at temperatures between 40 and 77 K",

abstract = "This paper presents a systematic investigation of a broadband thin-film antenna-coupled high-temperature superconducting (HTS) terahertz (THz) harmonic mixer at relatively high operating temperature from 40 to 77 K. The mixer device chip was fabricated using the CSIRO established step-edge YBa2Cu3O7-x (YBCO) Josephson junction technology, packaged in a well-designed module and cooled in a temperature adjustable cryocooler. Detailed experimental characterizations were carried out for the broadband HTS mixer at both the 200 and 600 GHz bands in harmonic mixing mode. The DC current-voltage characteristics (IVCs), bias current condition, local oscillator (LO) power requirement, frequency response, as well as conversion efficiency under different bath temperatures were thoroughly investigated for demonstrating the frequency down-conversion performance.",

keywords = "Terahertz, Harmonic mixer, High-temperature superconducting Josephson junction, Broadband mixer",

author = "Xiang Gao and Jia Du and Ting Zhang and Guo, {Y. Jay} and Foley, {Cathy P.}",

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doi = "10.1007/s10762-017-0422-x",

language = "English",

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AU - Gao, Xiang

AU - Du, Jia

AU - Zhang, Ting

AU - Guo, Y. Jay

AU - Foley, Cathy P.

PY - 2017/11

Y1 - 2017/11

N2 - This paper presents a systematic investigation of a broadband thin-film antenna-coupled high-temperature superconducting (HTS) terahertz (THz) harmonic mixer at relatively high operating temperature from 40 to 77 K. The mixer device chip was fabricated using the CSIRO established step-edge YBa2Cu3O7-x (YBCO) Josephson junction technology, packaged in a well-designed module and cooled in a temperature adjustable cryocooler. Detailed experimental characterizations were carried out for the broadband HTS mixer at both the 200 and 600 GHz bands in harmonic mixing mode. The DC current-voltage characteristics (IVCs), bias current condition, local oscillator (LO) power requirement, frequency response, as well as conversion efficiency under different bath temperatures were thoroughly investigated for demonstrating the frequency down-conversion performance.

AB - This paper presents a systematic investigation of a broadband thin-film antenna-coupled high-temperature superconducting (HTS) terahertz (THz) harmonic mixer at relatively high operating temperature from 40 to 77 K. The mixer device chip was fabricated using the CSIRO established step-edge YBa2Cu3O7-x (YBCO) Josephson junction technology, packaged in a well-designed module and cooled in a temperature adjustable cryocooler. Detailed experimental characterizations were carried out for the broadband HTS mixer at both the 200 and 600 GHz bands in harmonic mixing mode. The DC current-voltage characteristics (IVCs), bias current condition, local oscillator (LO) power requirement, frequency response, as well as conversion efficiency under different bath temperatures were thoroughly investigated for demonstrating the frequency down-conversion performance.

KW - Terahertz

KW - Harmonic mixer

KW - High-temperature superconducting Josephson junction

KW - Broadband mixer

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Experimental investigation of a broadband high-temperature superconducting terahertz mixer operating at temperatures between 40 and 77 K

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