Optical pulse-shaping using ultrafast phase transformation in vanadium dioxide
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abstract
A semiconductor-to-metal phase transition in vanadium dioxide results in a huge change of optical refractive index. Only a picojoule of the incident laser energy is required for this phase transition to happen, and the time scale of this transformation is very short - semiconductor becomes metal within the first 100-fs. In this report we utilize this phase transformation to dramatically modify the shape of the incident laser pulse.
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Ultrafast Phenomena in Semiconductors and Nanostructure Materials IX