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Optical limiting in pulsed laser deposited VO2nanostructures

Authors
Journal
Optics Communications
0030-4018
Publisher
Elsevier
Publication Date
Volume
285
Issue
6
Identifiers
DOI: 10.1016/j.optcom.2011.09.057
Keywords
  • Vanadium Dioxide
  • Phase Transition
  • Refractive Index Modulation
  • Infrared
  • Optical Limiting
  • Femtosecond Regime

Abstract

Abstract Being a Mott type oxide, at a temperature of ~ 68 °C and ambient pressure, stoichiometric VO 2 undergoes a first order metal-insulator transition, which is accompanied by a reversible abrupt change in the band gap opening. From an optical point of view, this metal-insulator transition manifests itself by a significant and reversible variation of the refractive index under either a thermal stimuli or by photo-induction. This contribution reports on the ultrafast optical limiting in the IR regime of pulse laser deposited VO 2 nanostructures.

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