Ultrafast Phase Transition Dynamics in GeSb Films

Presentation Date: 

Tuesday, August 8, 2000


Nonlinear Optics 2000, Optical Society of America (Kaua'i, HI, USA)

Presentation Slides: 

We measure the femtosecond time resolved dielectric function of a-GeSb after excitation with an ultrashort laser pulse. The results reveal an ultrafast transition to a new non-thermodynamic phase which is not c-GeSb as previously believed.