We propose a new approach, forward-scattering holography with a filter, to holographic particle velocimetry for significant improvement in terms of increased effective aperture, modest laser power requirement, simple geometric setup, improved signal-to-noise ratio, and higher seeding density. We achieve this result by using a smooth (Guassian-like) high-pass filter during recording.
© 1998 Optical Society of America
Fangping Liu and Fazle Hussain, "Holographic particle velocimeter using forward scattering with filtering," Opt. Lett. 23, 132-134 (1998)