pump-and-probe Archives | The American Ceramic Society

pump-and-probe

Pump-and-probe laser method shines new light on rapid phase transitions

By / March 16, 2012

Lost vibrations: In the insulating state, the VO2 crystal structure vibrates at four well-defined frequencies when hit by a low power laser pulse. These vibrations modulate the reflectivity over time as shown in the left image. In the right image, the power of the laser has been turned up and the VO2 has stopped vibrating,…

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