Title :
Generation and propagation of coherent THz folded acoustic phonons
Author :
Eckhause, T.A. ; Wahlstrand, J.K. ; Merlin, R. ; Reason, M. ; Goldman, R.S.
Author_Institution :
Phys. Dept., Michigan Univ., Ann Arbor, MI, USA
Abstract :
We report on the propagation of coherent folded acoustic phonons with frequencies near 1 THz. The folded phonons are generated with femtosecond optical pulses and detected, with little attenuation, after traversing 1.2 /spl mu/m of bulk GaAs.
Keywords :
III-V semiconductors; acoustic pulses; gallium arsenide; high-speed optical techniques; phonons; submillimetre wave generation; submillimetre wave propagation; 1.2 mum; GaAs; THz wave generation; THz wave propagation; bulk GaAs; coherent folded acoustic phonons; femtosecond optical pulses; folded phonons; Acoustic propagation; Acoustic signal detection; Frequency; Optical attenuators; Optical detectors; Optical propagation; Optical pulse generation; Optical pulses; Phonons; Ultrafast optics;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.237806
