Title :
Formation of coherent longitudinal optical phonon and plasmon coupling modes in semiconductors
Author_Institution :
Center for Condensed Matter Sci., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
We directly observe the formation of coherent longitudinal optical phonon and plasmon coupling modes in GaAs (100) with time-resolved second-harmonic generation. Quantum interference between coherent LO phonon and photoexcited plasma continuum can be identified near zero delay time. The asymmetric spectral line shape resolved in time-frequency domain is ascribed to the effect of Fano resonance.
Keywords :
Delay effects; Gallium arsenide; Interference; Optical coupling; Phonons; Plasmas; Plasmons; Resonance; Shape; Time frequency analysis;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
