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Femtosecond Insulator-Metal Transition in VO2 Induced by Intense Multi-THz Transients

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Abstract

A non-thermal insulator-metal transition in VO2 has been driven by a non-resonant excitation at frequencies around 25 THz. A switching time of 80 fs is found, corresponding to approximately two cycles of the driving field.

© 2014 Optical Society of America

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