Impact of propagation through an aberrating medium on the linear effective apodization of a nonlinearly generated second harmonic field

An investigation had an objective of measuring the impact of phase- and amplitude-aberrations resulting from propagation through an inhomogeneous tissue on the beamwidth associated with, the fundamental (1f), the nonlinearity generated second harmonic (2f) and the linearly propagated, effective apodization signal at the same (2f) frequency. The characteristics of the different pattern associated with the linear-propagation effective apodization transmit case bonded well with the detailed spatial characteristics of the nonlinearly generated second harmonic field.