Title :
Transition from excitonic resonance to frequency mixing (2/spl omega/,-/spl omega//sub 2/) in the femtosecond nondegenerate four-wave mixing
Author :
Ahn, Y.H. ; Yahng, J.S. ; Sohn, J.Y. ; Kim, D.S.
Author_Institution :
Dept. of Phys., Seoul Nat. Univ., South Korea
Abstract :
Summary form only given. Since the initial demonstration of third order nonlinear process, nondegenerate interactions have been observed in the incoherent response of semiconductors. On the other hand, femtosecond transient four-wave mixing (FWM) has largely focused on the dynamics of excitonic resonance, since most of femtosecond wave mixing has been done under the degenerate scheme. In the study, we demonstrate a transition from excitonic resonance to frequency mixing for the first time, in the nondegenerate femtosecond FWM on the GaAs/AlGaAs multiple quantum well.
Keywords :
III-V semiconductors; aluminium compounds; excitons; gallium arsenide; high-speed optical techniques; multiwave mixing; semiconductor quantum wells; GaAs-AlGaAs; GaAs/AlGaAs multiple quantum well; degenerate scheme; excitonic resonance; femtosecond nondegenerate four-wave mixing; femtosecond transient four-wave mixing; femtosecond wave mixing; frequency mixing; incoherent response; nondegenerate femtosecond FWM; nondegenerate interactions; semiconductors; third order nonlinear process; Data mining; Delay effects; Ear; Four-wave mixing; Gallium arsenide; Optical pulses; Photonic band gap; Quantum mechanics; Resonance; Resonant frequency;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-576-X
DOI :
10.1109/QELS.1999.807347
