Compact High-Tc Superconducting Terahertz Emitter with Tunable Frequency from 0.15 to 1 THz
Source abstract
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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Research context
OpenAlex topics: Terahertz technology and applications · Physics of Superconductivity and Magnetism · Superconducting and THz Device Technology
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Purple Mountain Laboratories, Nanjing 211111, China
Research Institute of Superconductor Electronics, Nanjing University, Nanjing 210023, China
National Institute for Materials Science, Tsukuba 3050047, Japan
Kotel’nikov Institute of Radio Engineering and Electronics, Moscow 125009, Russia
Physikalisches Institut, Center for Quantum Science (CQ) and LISA+, Universität Tübingen, 72076 Tübingen, Germany
Funding
National Natural Science Foundation of China · National Key R&D Program of China · Jiangsu Key Laboratory of Advanced Techniques for Manipulating Electromagnetic Waves · COST Action CA21144 superqumap · Ministry of Science and Higher Education of the Russian Federation · Innovation and Entrepreneurship Program of Jiangsu Province
References (35)
Show source-provided references
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