Radiation due to Josephson oscillations in layered superconductors.
Journal Article
·
· Phys. Rev. Lett.
We derive the power of direct radiation into free space induced by Josephson oscillations in intrinsic Josephson junctions of layered superconductors. We consider the superradiation regime for a crystal cut in the form of a thin slice parallel to the c axis. We find that the radiation correction to the current-voltage characteristic in this regime depends only on crystal shape. We show that at a large number of junctions oscillations are synchronized providing high radiation power and efficiency in the terahertz frequency range. We discuss the crystal parameters and bias current optimal for radiation power and crystal cooling.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 915022
- Report Number(s):
- ANL/MSD/JA-59634; PRLTAO; TRN: US0804879
- Journal Information:
- Phys. Rev. Lett., Vol. 99, Issue 2007; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- ENGLISH
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