In 2004, a group of researchers from Netherlands and Ireland has used URAPIV source for the optical measurements in two-phase bubble flows in a convective flow. [abstract] of their paper in Measurement Sciense and Technology. You can obtain the paper also following its DOI: 10.1088/0957-0233/15/6/N01

It is interesting that the first author is Victor Chan (from Delft University) who had designed (though not updated very much recently) very informative website, devoted for the optical measurements in fluids: www.holomap.com

The same group has published in Proc. 11th International Symposium on Applications of Laser Techniques to Fluid Mechanics:

Y.M.C. Delauré, V.S.S. Chan and D.B. Murray Department of Mechanical and Manufacturing Engineering, Trinity College, Dublin 2, Ireland presented Bubble Wake Interaction with Convective flow from a heated vertical flat plate.