Title :
Ultrafast resonant nonlinear response of AlGaAs photonic crystals
Author :
Bristow, A.D. ; Wells, J.-P.R. ; Fox, A.M. ; Skolnick, M.S. ; Tahraoui, A. ; Krauss, T.F.
Author_Institution :
Dept. of Phys. & Astron., Univ. of Sheffield, UK
Abstract :
This study reports experimental measurements of the ultrafast nonlinear response of AlGaAs photonic crystals with a band gap at around 900 nm. An ultrafast nonlinear shift of the band gap wavelength was observed when using femtosecond pulsed excitation at 800 nm. The magnitude of the shift is very large (> 6 nm), and the 1/e response time is around 30 ps. These results confirm the excellent potential of semiconductor photonic crystals for applications in nonlinear optical devices.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; high-speed optical techniques; nonlinear optics; photonic band gap; photonic crystals; 30 ps; 800 nm; 900 nm; AlGaAs; AlGaAs photonic crystals; band gap; femtosecond pulsed excitation; nonlinear optical devices; resonant nonlinear response; semiconductor photonic crystals; ultrafast nonlinear shift; ultrafast response; Delay effects; Extraterrestrial measurements; Indium gallium arsenide; Optical waveguides; Photonic band gap; Photonic crystals; Physics; Resonance; Ultrafast optics; Wavelength measurement;
Conference_Titel :
Quantum Electronics Conference, 2003. EQEC '03. European
Print_ISBN :
0-7803-7733-8
DOI :
10.1109/EQEC.2003.1314062
