Laser misalignment geometry.

Contexts in source publication

Context 1

... p 0 is the pressure amplitude, w A the acoustic angular frequency and k A the acoustic wave number. The geometry is as shown in Figure 3, with the y ­ axis aligned parallel with the acoustic axis. If the laser beam propagates parallel to the acoustic wavefronts (q = 0 i.e. parallel to the x ­ axis) then the measured velocity will be given by: ...

Context 2

... measured velocity for a general laser path at an angle q to the x ­ axis (Figure 3) will depend on the integrated pressure along the path L: ...