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Author Bobyrev, Yu V. ♦ Voronov, Aleksandr V. ♦ Petnikova, V. M. ♦ Rudenko, K. V. ♦ Shuvalov, Vladimir V.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ENERGY GAP ♦ HIGH-TC SUPERCONDUCTORS ♦ INTERFERENCE ♦ NONLINEAR PROBLEMS ♦ PHONONS ♦ PHOTONS ♦ RELAXATION ♦ SPECTRA ♦ SPECTROSCOPY ♦ SUPERCONDUCTING FILMS ♦ BOSONS ♦ ELEMENTARY PARTICLES ♦ FILMS ♦ MASSLESS PARTICLES ♦ QUASI PARTICLES ♦ SUPERCONDUCTORS ♦ TYPE-II SUPERCONDUCTORS
Abstract The electronic nonlinear response {chi}{sup (3)}{sub ee} of high-temperature superconductor films in methods of degenerate four-photon spectroscopy is calculated. It is shown that the model considering interband electronic transitions in a 'real' band structure with the only fitting parameter (the electron-phonon relaxation rate) well describes all the experimental spectral features of the response, and the methods of degenerate four-photon spectroscopy themselves can reveal, due to the interference character of {chi}{sup (3)}{sub ee}, the presence of the energy gap in the spectrum of states. (laser applications and other topics in quantum electronics)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2005-01-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 35
Issue Number 1


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