Nonlinear optical microscopy analysis of ultrafast phase transformation in vanadium dioxide.
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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.
author list (cited authors)
Petrov, G. I., Yakovlev, V. V., & Squier, J. A.