Trapped phonons in ultrathin metal films: the interpretation of recent femtosecond experiments

Journal Article · Mon Sep 30 00:00:00 EDT 2002 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2002V032N09ABEH002288· OSTI ID:21470244

Melikyan, A O; Minassian, H R ^[1]

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1. State Engineering University of Armenia, Yerevan (Armenia)

The results of recent experimental and theoretical studies of the nonequilibrium dynamics of electrons and phonons excited by femtosecond laser pulses in ultrathin metal films are discussed. Experimental data obtained by the femtosecond pump - probe wave (FPPW) method are analysed using a two-temperature model and non-thermal models. A key role of the size quantisation of a phonon spectrum in the dynamics of phonons and electron - phonon interaction is substantiated. The application of the FPPW method in superconductivity studies is also discussed. (review)

• OSTI ID: 21470244
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 32, Issue 9; Other Information: DOI: 10.1070/QE2002v032n09ABEH002288; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRON-PHONON COUPLING
ELECTRONS
EXPERIMENTAL DATA
LASERS
METALS
OPTICAL PUMPING
PHONONS
PROBES
PULSES
QUANTIZATION
SPECTRA
SUPERCONDUCTIVITY
THIN FILMS
TRAPPING
COUPLING
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FILMS
INFORMATION
LEPTONS
NUMERICAL DATA
PHYSICAL PROPERTIES
PUMPING
QUASI PARTICLES