Impulsive excitation of coherent phonons observed in reflection in bismuth and antimony

1990 ◽  
Vol 57 (10) ◽  
pp. 1004-1006 ◽  
Author(s):  
T. K. Cheng ◽  
S. D. Brorson ◽  
A. S. Kazeroonian ◽  
J. S. Moodera ◽  
G. Dresselhaus ◽  
...  
Keyword(s):  
Impulsive Excitation ◽  
Coherent Phonons

Coherent Phonons in Semiconductors and Semiconductor Heterostructures

1998 ◽  
Vol 07 (02) ◽  
pp. 201-213 ◽  
Author(s):  
Thomas Dekorsy ◽  
Gyu Cheon Cho ◽  
Heinrich Kurz
Keyword(s):  
High Sensitivity ◽  
Semiconductor Heterostructures ◽  
Phonon Modes ◽  
Bulk Gaas ◽  
Pump Probe ◽  
Free Carriers ◽  
Impulsive Excitation ◽  
Phase Sensitive ◽  
Coherent Phonons ◽  
Coherent Acoustic Phonons

The impulsive excitation and phase-sensitive detection of coherent phonons enable the study of dynamical properties of the lattice. In pump-probe experiments with femtosecond time resolution the amplitude and phase of the coherent lattice motion can be detected with high sensitivity. Especially in semiconductors and semiconductor heterostructures, where a coherent phonon mode and free carriers are exited at the same time, important information about the carrier-phonon system far away from equilibrium is obtained. In bulk GaAs coherent plasmon-phonon modes can be traced via the associated macroscopic field. In GaAs-AlGaAs based heterostructures coupled phonon-intersubband plasmons, coupled Bloch-phonon oscillations, and coherent acoustic phonons are observed.

Magnetic Field Distribution in Aperture of TEM Horn Antenna for Close Proximity RF Immunity Test by Impulsive Excitation Wave

2020 ◽  
Vol 140 (12) ◽  
pp. 601-602
Author(s):  
Gen Kawakami ◽  
Ken Kawamata ◽  
Shinobu Ishigami ◽  
Takeshi Ishida ◽  
Katsushige Harima ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Distribution ◽  
Horn Antenna ◽  
Magnetic Field Distribution ◽  
Excitation Wave ◽  
Impulsive Excitation ◽  
Close Proximity ◽  
Tem Horn

Coherent Phonons in Ag-BaO Thin Films

1998 ◽  
Vol 15 (11) ◽  
pp. 834-836 ◽  
Author(s):  
Wei Qian ◽  
Hong Yan ◽  
Jing-jing Wang ◽  
Ying-hua Zou ◽  
Lin Lin ◽  
...  
Keyword(s):  
Thin Films ◽  
Coherent Phonons

scholarly journals Generation of coherent phonons by coherent extreme ultraviolet radiation in a transient grating experiment

2018 ◽  
Vol 113 (22) ◽  
pp. 221905 ◽  
Author(s):  
A. A. Maznev ◽  
F. Bencivenga ◽  
A. Cannizzo ◽  
F. Capotondi ◽  
R. Cucini ◽  
...  
Keyword(s):  
Ultraviolet Radiation ◽  
Extreme Ultraviolet ◽  
Transient Grating ◽  
Coherent Phonons ◽  
Extreme Ultraviolet Radiation

IMPULSIVE EXCITATION OF ACOUSTIC VIBRATIONS IN APPLES FOR FIRMNESS DETERMINATION

1990 ◽  
Vol 33 (4) ◽  
pp. 1353-1359 ◽  
Author(s):  
P. Armstrong ◽  
H. R. Zapp ◽  
G. K. Brown
Keyword(s):  
Acoustic Vibrations ◽  
Impulsive Excitation
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