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Journal articles
Femtosecond laser excitation dynamics of the semiconductor-metal phase transition in VO2
Abstract : We have measured the subpicosecond optical response of a solid‐state, semiconductor‐to‐metal phase transition excited by femtosecond laser pulses. We have determined the dynamic response of the complex refractive index of VO2 thin films by making pump‐probe optical transmission and reflection measurements at 780 nm. The phase transition was found to be largely prompt with the optical properties of the high‐temperature metallic state being attained within 5 ps. The ultrafast change in complex refractive index enables ultrafast optical switchingdevices in VO2.
Cited literature [2 references]
https://hal-iogs.archives-ouvertes.fr/hal-00761582
Contributor : Marie-Laure Edwards Connect in order to contact the contributor
Submitted on : Friday, April 15, 2016 - 4:20:26 PM
Last modification on : Thursday, September 16, 2021 - 3:42:21 AM
Long-term archiving on: : Saturday, July 16, 2016 - 1:11:12 PM
Contributor : Marie-Laure Edwards Connect in order to contact the contributor
Submitted on : Friday, April 15, 2016 - 4:20:26 PM
Last modification on : Thursday, September 16, 2021 - 3:42:21 AM
Long-term archiving on: : Saturday, July 16, 2016 - 1:11:12 PM
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