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Superconducting Ter...
Superconducting Terahertz Sources with 12% Power Efficiency
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- Cattaneo, Roger (författare)
- Stockholms universitet,Fysikum
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- Borodianskyi, Evgenii A. (författare)
- Stockholms universitet,Fysikum
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- Kalenyuk, Aleksey A. (författare)
- Stockholms universitet,Fysikum,National Academy of Sciences of Ukraine, Ukraine
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- Krasnov, Vladimir M. (författare)
- Stockholms universitet,Fysikum,Moscow Institute of Physics and Technology, Russia
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(creator_code:org_t)
- 2021
- 2021
- Engelska.
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Ingår i: Physical Review Applied. - 2331-7019. ; 16:6
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Low power efficiency is one of the main problems of terahertz (THz) sources, colloquially known as “the THz gap.” In this work we present prototypes of THz devices based on whisker crystals of a high-temperature superconductor Bi2Sr2CaCu2O8+δ with a record high-radiation power efficiency of 12% at a frequency of approximately 4 THz. We employ various on- and off-chip detection techniques and, in particular, use the radiative cooling phenomenon for accurate evaluation of the emission power. We conclude that such devices can be used for creation of tunable, monochromatic, cw, compact, and power-efficient THz sources.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Coherent THz sources
- Superconductivity
- Josephson effect
- Physics
- fysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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