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Optica Publishing Group
  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper QWC61

Femtosecond thermoreflectivity of multilayer metal films

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Abstract

The dynamics of nonequilibrium electrons in solids has attracted considerable recent attention. Nonequilibrium electrons in metals can be excited by laser pulses with durations less than or comparable to the excited-electron energy-loss lifetime τe when a transient inequality between the effective electron and lattice temperatures (Te and Tl) occurs. The excited-electron population can be probed through measurements of the transient differential reflectivity (or transmissivity) of the sample.

© 1994 Optical Society of America

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