Experimental Characterization of Acoustic Wave Propagation in a Supersonic Duct

2005 ◽  
Author(s):  
G. Stamp ◽  
A. Ghosh ◽  
A. Zang ◽  
Ken Yu
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Experimental Characterization ◽  
Acoustic Wave Propagation

Experimental and theoretical characterization of the surface acoustic wave propagation properties of GaN epitaxial layers on c-plane sapphire

2003 ◽  
Vol 18 (5) ◽  
pp. 1157-1161 ◽  
Author(s):  
Kook Hyun Choi ◽  
Hyeong Joon ◽  
Su Jin Chung ◽  
Jin Yong Kim ◽  
Tae Kun Lee ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Chemical Vapor ◽  
Epitaxial Layers ◽  
Experimental Characterization ◽  
Acoustic Wave Propagation ◽  
Matrix Methods ◽  
Propagation Properties ◽  
Good Agreement

Surface acoustic wave (SAW) propagation properties of gallium nitride (GaN) epitaxial layers on sapphire were theoretically and experimentally characterized. GaN thin films were grown on a c-plane sapphire substrate using a metalorganic chemical vapor deposition system. The experimental characterization of SAW propagation properties was performed with a linear array of interdigital transducer structures, while SAW velocities were calculated by matrix methods. Experimentally, we found pseudo-SAW and high-velocity pseudo-SAW modes in the GaN/sapphire structure, which had a good agreement with calculated velocities.

Characterization of discretely graded materials using acoustic wave propagation

2006 ◽  
Vol 37 (1-2) ◽  
pp. 20-28 ◽  
Author(s):  
Ritesh Samadhiya ◽  
Abhijit Mukherjee ◽  
Siegfried Schmauder
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Acoustic Wave Propagation ◽  
Graded Materials

Acoustic wave propagation in two dimensional sheared ducted flows

1997 ◽  
Author(s):  
E. Longatte ◽  
P. Lafon ◽  
S. Candel ◽  
E. Longatte ◽  
P. Lafon ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Two Dimensional ◽  
Acoustic Wave Propagation
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