Title :
Coherent plasmon-phonon oscillations detected by the Franz-Keldysh effect
Author :
Cho, G.C. ; Bakker, H.J. ; Dekorsy, T. ; Kurz, H.
Author_Institution :
Inst. fur Halbleitertechnik II, Tech. Hochschule Aachen, Germany
Abstract :
Summary form only given. Coherent phonons are generated in the surface depletion layer of III-V semiconductors via the ultrafast screening of the surface field. In pump-probe experiments the modulation of the reflectivity resulting from coherent phonons can be detected by the intensity modulation of the weak probe pulses.
Keywords :
III-V semiconductors; high-speed optical techniques; optical modulation; optical pumping; oscillations; phonon-plasmon interactions; plasmons; reflectivity; surface plasmons; Franz-Keldysh effect; III-V semiconductors; coherent phonons; coherent plasmon-phonon oscillation detection; intensity modulation; pump-probe experiments; reflectivity modulation; surface depletion layer; surface field; ultrafast screening; weak probe pulses; Electric variables measurement; Frequency; Intensity modulation; Optical pulse generation; Optical pulses; Phonons; Pulse measurements; Quantum well devices; Time measurement; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-444-0
