Title :
Coherent LO phonon-plasma coupling in GaAs
Author_Institution :
Center for Condensed Matter Sci., Nat. Taiwan Univ., Taiwan
Abstract :
Summary form only given. The coherent LO-plasma coupling in GaAs has been observed and controlled using two-pump time-resolved SHG technique. The coupling efficiency can be coherently enhanced by adjusting the relative phase between the injected plasma and LO phonon. This experiment demonstrates the possible coherent control of phonon-plasma interactions in semiconductors and their nanostructures.
Keywords :
III-V semiconductors; gallium arsenide; optical harmonic generation; phonon-plasmon interactions; time resolved spectra; Fourier power spectra; GaAs; coherent LO phonon-plasma coupling; coherent phonon oscillation; oscillatory amplitudes; photoexcited electron-hole plasma; relative phase; transient field screening; two-pump time-resolved second-harmonic generation; Gallium compounds; Optical frequency conversion; Phonons; Plasmons;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-708-3
DOI :
10.1109/QELS.2002.1031332
