Investigation of the parametric field from a focusing source by using superposition of Gaussian beams

Authors
Zhang, D Gong, XF Lu, RR
Citation
D. Zhang et al., Investigation of the parametric field from a focusing source by using superposition of Gaussian beams, CHIN PHYS L, 17(11), 2000, pp. 812-814
Citations number
5
Categorie Soggetti
Physics
Journal title
CHINESE PHYSICS LETTERS
ISSN journal
0256307X → ACNP
Volume
17
Issue
11
Year of publication
2000
Pages
812 - 814
Database
ISI
SICI code
0256-307X(2000)17:11<812:IOTPFF>2.0.ZU;2-4
Abstract
The superposition method of Gaussian beams is extended to describe the acou stical parametric field from a focusing source. The axial sound pressure of the difference frequency wave 1MHz generated due to the interaction of two primary wave 3.5 and 4.5MHz is theoretically calculated by using 10 items of Gaussian functions. Experimental results coincide well with the calculat ed results except for the case at the vicinity of the focusing source.