Article detail · 2007
Emission of Coherent THz Radiation from Superconductors
- Year
- 2007
- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- YÖKSİS venue Science
- Catalog match (ISSN) Science
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · English
Compact solid-state sources of terahertz (THz) radiation are being sought for sensing, imaging, and spectroscopy applications across the physical and biological sciences. We demonstrate that coherent continuous-wave THz radiation of sizable power can be extracted from intrinsic Josephson junctions in the layered high-temperature superconductor Bi2Sr2CaCu2O8. In analogy to a laser cavity, the excitation of an electromagnetic cavity resonance inside the sample generates a macroscopic coherent state in which a large number of junctions are synchronized to oscillate in phase. The emission power is found to increase as the square of the number of junctions reaching values of 0.5 microwatt at frequencies up to 0.85 THz, and persists up to approximately 50 kelvin. These results should stimulate the development of superconducting compact sources of THz radiation.
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Citations
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763 citations
OpenAlex cited_by_count (cache / database)
46 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
- Direct observation of tetrahertz electromagnetic waves emitted from intrinsic Josephson junctions in single crystalline Bi2Sr2CaCu2O8 2008
- Terahertz wave emission from intrinsic Josephson junctions in high-T-c superconductors 2009
- Terahertz wave emission from intrinsic Josephson junctions in high Tc superconductors 2009
- Counterintuitive consequence of heating in strongly driven intrinsic junctions of Bi 2 Sr 2 CaCu 2 O 8 mesas 2010
- Interferometer measurements of terahertz waves from Bi2Sr2CaCu2O8d mesas 2012
- Interferometer measurements of terahertz waves from Bi2Sr2CaCu2O8 d mesas 2012
- Interferometer measurements of terahertz waves from Bi2Sr2CaCu2O8 d mesas 2012
- Thermal Management in Large Bi2212 Mesas Used for Terahertz Sources 2009
- The Fabrication of THz Emitting Mesas by Reactive Ion-Beam Etching of Superconducting Bi2212 with Multilayer Masks 2011
- The Fabrication of THz Emitting Mesas by Reactive Ion Beam Etching of Superconducting Bi2212 with Multilayer Masks 2011