Title :
Large ultrafast optical nonlinearities in As-rich GaAs
Author :
Benjamin, Seldon D. ; Othonos, A. ; Smith, P.W.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont.
fDate :
9/29/1994 12:00:00 AM
Abstract :
The measurement of large ultrafast bandgap-resonant optical nonlinearities in As-rich samples of GaAs that have been grown at low temperatures is reported. Light-induced refractive index changes of magnitude greater than 0.1 and with picosecond response times have been observed. These materials appear to be promising candidates for the fabrication of compact, ultrafast all-optical devices
Keywords :
III-V semiconductors; gallium arsenide; high-speed optical techniques; nonlinear optics; refractive index; As-rich GaAs; GaAs; compact ultrafast all-optical devices; light-induced refractive index changes; low temperature grown samples; picosecond response time; ultrafast bandgap-resonant optical nonlinearities;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941154
