Multi Gaussian beams explanation

chiraganand · Dec 29, 2016

Can anyone explain intuitively or give a better explanation of multi gaussian beams and the ABCD matrix approach for sound (ultrasonics) and not light?
Thanks!

Paul Colby · Jan 5, 2017

http://www.colorado.edu/physics/phys4510/phys4510_fa05/Chapter5.pdf

This should work for sound since I don't see any polarization stuff (I just skimmed the chapter). In my brief contact with gaussian beams they were treated as point sources at complex source locations. The length of the imaginary displacement was related to the min beam diameter.

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