On-off resonance femtosecond non-linear absorption of chalcogenide glassy films

Non-linear absorption of chalcogenide thin films has been investigated with femtosecond pump-probe experiments. Different peculiarities of femtosecond pulse absorption have been found in the case of on- and off-resonance pumping and probing, due to either intraband or interband transitions. The phys...

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Bibliographic Details
Published in:Journal of non-crystalline solids 1994-03, Vol.168 (3), p.213-222
Main Authors: Fazio, E., Hulin, D., Chumash, V., Michelotti, F., Andriesh, A.M., Bertolotti, M.
Format: Article
Language:English
Subjects:
Amorphous semiconductors
glasses
Amorphous semiconductors
glasses
nanocrystalline materials
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Physics
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Summary:Non-linear absorption of chalcogenide thin films has been investigated with femtosecond pump-probe experiments. Different peculiarities of femtosecond pulse absorption have been found in the case of on- and off-resonance pumping and probing, due to either intraband or interband transitions. The physical mechanisms which can explain such different behaviours are discussed.
ISSN:0022-3093
1873-4812
DOI:10.1016/0022-3093(94)90332-8