Title :
Dispersion of the nonlinear susceptibility of GaAs in the THz range
Author :
Dekorsy, T. ; Helm, M. ; Yakovlev, V.A. ; Seidel, W. ; Keilmann, F.
Author_Institution :
Inst. for Ion Beam Phys. & Mater. Res., Dresden, Germany
Abstract :
We investigate the nonlinear susceptibility of GaAs via SHG with a free-electron laser below the optical phonon resonance. The observation of a maximum and a zero-crossing allows the quantitative determination of higher-order lattice potentials.
Keywords :
III-V semiconductors; gallium arsenide; infrared spectra; nonlinear optical susceptibility; optical dispersion; optical harmonic generation; semiconductor thin films; submillimetre wave spectra; GaAs; SHG; free-electron laser; nonlinear susceptibility; optical dispersion; optical phonon resonance; second harmonic generation; Biomedical optical imaging; Free electron lasers; Frequency conversion; Gallium arsenide; Laser theory; Nonlinear optics; Optical harmonic generation; Phonons; Resonance; Semiconductor lasers;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.237801
