Title :
Femtosecond nonlinear phase dispersion of GaAs/AlGaAs quantum wells
Author :
Misawa, K. ; Inuzuka, F. ; Nishi, K. ; Lang, R.
Author_Institution :
Dept. of Appl. Phys., Tokyo Univ. of Agric. & Technol., Japan
Abstract :
We determined the femtosecond nonlinear phase and amplitude spectra in GaAs/AlGaAs quantum wells using a polarization-division Sagnac interferometer. The nonlinear dispersion around the excitonic resonance can be explained by ultrafast neutralization of the built-in field.
Keywords :
III-V semiconductors; Sagnac interferometers; aluminium compounds; excitons; gallium arsenide; high-speed optical techniques; optical communication; optical dispersion; phase modulation; semiconductor quantum wells; time resolved spectra; GaAs-AlGaAs; GaAs-AlGaAs quantum wells; built-in field; excitonic resonance; femtosecond nonlinear phase dispersion; polarization-division Sagnac interferometer; ultrafast neutralization;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
