Observations of light backscattered from air bubbles in a viscous liquid demonstrate an enhancement due to axial focusing. A physical-optics approximation for the cross-polarized scattering correctly describes the spacing of regular features observed. The non-cross polarized scattering is not adequately described by a single class of rays.
No takes yet. Share an insight, caveat, or question.
Langley et al. (1981) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: