title: Nonlinear optical microscopy analysis of ultrafast phase transformation in vanadium dioxide.
abstract: The nonlinear optical properties of solid-solid phase transformation in vanadium dioxide are studied. It is found that the efficiency of the third-harmonic optical signal generated from the surface of the material increases by 1.5 orders of magnitude as a function of this phase transformation. Microscopy studies show the hysteresis of the phase transformation on a micrometer-size scale.
authors.forename: G I
authors.initials: GI
authors.lastname: Petrov
authors.forename: V V
authors.initials: VV
authors.lastname: Yakovlev
authors.forename: J A
authors.initials: JA
authors.lastname: Squier