Title :
Above-bandgap Franz-Keldysh effect: a new method for ultrafast electric field measurements in semiconductors
Author :
Bieler, M. ; Hein, G. ; Pierz, K. ; Siegner, U. ; Koch, M.
Author_Institution :
Phys. Tech. Bundesanstalt, Braunschweig, Germany
Abstract :
We present a new technique for electric field measurements in semiconductors with femtosecond time resolution. The method relies on the integration over electric field induced Franz-Keldysh oscillations with broadband laser pulses above the bandgap.
Keywords :
electric field measurement; energy gap; high-speed optical techniques; infrared spectra; semiconductors; above-bandgap Franz-Keldysh effect; broadband laser pulses; femtosecond time resolution; semiconductors; ultrafast electric field measurements;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
