Open Access

Applied Sciences (Switzerland), volume 13, issue 6, pages 3469

Compact High-Tc Superconducting Terahertz Emitter with Tunable Frequency from 0.15 to 1 THz

Hancong Sun ^{1, 2}

Shixian Chen ²

Yong-Lei Wang ^{1, 2}

Guozhu Sun ^{1, 2}

Jian Chen ^{1, 2}

Takeshi Hatano ³

V.P Koshelets ⁴

Dieter Koelle ⁵

Reinhold Kleiner ⁵

Huabing Wang ^{1, 2}

Peiheng Wu ^{1, 2}

Show full list: 11 authors

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Purple Mountain Laboratories, Nanjing 211111, China |

Research Institute of Superconductor Electronics, Nanjing University, Nanjing 210023, China |

National Institute for Materials Science, Tsukuba 3050047, Japan |

⁴

Kotel’nikov Institute of Radio Engineering and Electronics, Moscow 125009, Russia |

⁵

Physikalisches Institut, Center for Quantum Science (CQ) and LISA+, Universität Tübingen, 72076 Tübingen, Germany |

Publication type: Journal Article

Publication date: 2023-03-08

MDPI

Journal: Applied Sciences (Switzerland)

scimago Q2

SJR: 0.508

CiteScore: 5.3

Impact factor: 2.5

ISSN: 20763417

DOI: 10.3390/app13063469

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Computer Science Applications

Process Chemistry and Technology

General Materials Science

Instrumentation

General Engineering

Fluid Flow and Transfer Processes

Abstract

A compact cryogenic terahertz emitter is highly desired for applications in terahertz astronomy with a broad frequency range of emissions and relatively high emission power. In this paper, we report on a terahertz emitter based on Bi2Sr2CaCu2O8 + δ (BSCCO) intrinsic Josephson junctions, with a frequency range from 0.15 to 1.01 THz. The emitter is a square gold-BSCCO-gold mesa on a sapphire substrate fabricated by a simple and efficient method. The highest emission power of 5.62 μW at 0.35 THz was observed at 50 K. A record low emission frequency of 0.15 THz was achieved at 85 K, extending the applicability of BSCCO terahertz emitters in the low-frequency range.

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Publisher

MDPI

Journal

Applied Sciences (Switzerland)

scimago Q2

SJR

0.508

CiteScore

5.3

Impact factor

2.5

ISSN

20763417 (Electronic)

Profiles

Koshelets, V P

Compact High-Tc Superconducting Terahertz Emitter with Tunable Frequency from 0.15 to 1 THz

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