Frequency detection of focused sub-THz waves using a high-Tc Josephson junction

T. Miyadera; I. Kawayama; T. Kiwa; K. Tsukada; M. Tonouchi

doi:10.1016/j.physc.2005.02.136

Frequency detection of focused sub-THz waves using a high-T_c Josephson junction

T. Miyadera, I. Kawayama, T. Kiwa, K. Tsukada, M. Tonouchi

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

We have proposed a new type of frequency detection system of sub-terahertz electromagnetic waves using a photomixing technique and a Josephson junction detector. The photomixer illuminated by two lasers with different wavelengths generates coherent electromagnetic waves that include a frequency component corresponding to the frequency difference of the two lasers. The generated electromagnetic waves were radiated from a horn antenna and focused to the Josephson junction detector with Si lens. The high-T_c Josephson junction operates as a frequency detector for electromagnetic waves. Using this system, we observed the Shapiro steps of 188 μV that correspond to the frequencies of 90.8 GHz.

Original language	English
Pages (from-to)	1726-1730
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	II
DOIs	https://doi.org/10.1016/j.physc.2005.02.136
Publication status	Published - 2005
Event	Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity - Duration: Nov 23 2004 → Nov 25 2004

Keywords

Josephson junction
Photomixing
Shapiro step

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2005.02.136

Cite this

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title = "Frequency detection of focused sub-THz waves using a high-Tc Josephson junction",

abstract = "We have proposed a new type of frequency detection system of sub-terahertz electromagnetic waves using a photomixing technique and a Josephson junction detector. The photomixer illuminated by two lasers with different wavelengths generates coherent electromagnetic waves that include a frequency component corresponding to the frequency difference of the two lasers. The generated electromagnetic waves were radiated from a horn antenna and focused to the Josephson junction detector with Si lens. The high-Tc Josephson junction operates as a frequency detector for electromagnetic waves. Using this system, we observed the Shapiro steps of 188 μV that correspond to the frequencies of 90.8 GHz.",

keywords = "Josephson junction, Photomixing, Shapiro step",

author = "T. Miyadera and I. Kawayama and T. Kiwa and K. Tsukada and M. Tonouchi",

note = "Funding Information: This work was supported in part by the SCOPE program from the Ministry of Internal Affairs and Communications, and a Grant-in-Aid for Scientific Research (B) No. 13555107 from the Japan Society for the Promotion of Science.; Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

year = "2005",

doi = "10.1016/j.physc.2005.02.136",

language = "English",

volume = "426-431",

pages = "1726--1730",

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T1 - Frequency detection of focused sub-THz waves using a high-Tc Josephson junction

AU - Miyadera, T.

AU - Kawayama, I.

AU - Kiwa, T.

AU - Tsukada, K.

AU - Tonouchi, M.

N1 - Funding Information: This work was supported in part by the SCOPE program from the Ministry of Internal Affairs and Communications, and a Grant-in-Aid for Scientific Research (B) No. 13555107 from the Japan Society for the Promotion of Science.

PY - 2005

Y1 - 2005

N2 - We have proposed a new type of frequency detection system of sub-terahertz electromagnetic waves using a photomixing technique and a Josephson junction detector. The photomixer illuminated by two lasers with different wavelengths generates coherent electromagnetic waves that include a frequency component corresponding to the frequency difference of the two lasers. The generated electromagnetic waves were radiated from a horn antenna and focused to the Josephson junction detector with Si lens. The high-Tc Josephson junction operates as a frequency detector for electromagnetic waves. Using this system, we observed the Shapiro steps of 188 μV that correspond to the frequencies of 90.8 GHz.

AB - We have proposed a new type of frequency detection system of sub-terahertz electromagnetic waves using a photomixing technique and a Josephson junction detector. The photomixer illuminated by two lasers with different wavelengths generates coherent electromagnetic waves that include a frequency component corresponding to the frequency difference of the two lasers. The generated electromagnetic waves were radiated from a horn antenna and focused to the Josephson junction detector with Si lens. The high-Tc Josephson junction operates as a frequency detector for electromagnetic waves. Using this system, we observed the Shapiro steps of 188 μV that correspond to the frequencies of 90.8 GHz.

KW - Josephson junction

KW - Photomixing

KW - Shapiro step

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