Title :
Coherent effect in nonlinear excitation of low-temperature-grown GaAs by 1.5 μm pulses
Author :
Tomiyasu, Yuki ; Tominaga, Yoriko ; Kadoya, Yutaka
Author_Institution :
Grad. Sch. of Adv. Sci. of Matter, Hiroshima Univ., Higashi-Hiroshima, Japan
Abstract :
The mechanism of the nonlinear photo-carrier generation in low-temperature-grown GaAs by 1.5 μm pulses was investigated by a double pulse experiment. The effect of intermediate excitation on the photo response was distinctly observed. Moreover, the effect was found to be largely coherent, contrary to the proposed model.
Keywords :
III-V semiconductors; gallium arsenide; laser materials processing; light coherence; nonlinear optics; optical fabrication; photoexcitation; semiconductor growth; GaAs; coherent effect; double pulse experiment; low-temperature-grown gallium arsenide; nonlinear excitation; nonlinear photocarrier generation; wavelength 1.5 mum; Gallium arsenide; Interference; Laser beams; Measurement by laser beam; Photoconductivity; Principal component analysis; Probes;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
