Rudolf van Renesse

Martin · Post by **Martin** » Fri Feb 13, 2009 1:19 pm

Very interesting site: http://www.vanrenesse-consulting.com/in ... e=home.htm

Ed Wesly · Post by **Ed Wesly** » Fri Feb 13, 2009 3:54 pm

Whew! For a moment there I was afraid that this was another RIP!

This guy is truly amazing! He was the inventor of the "Pyrochrome" processing, and his book on Optical Security Techniques is one of those that I am always looking for on Amazon!

Kaveh · Post by **Kaveh** » Mon Feb 23, 2009 3:56 pm

Clever guy indeed, and the first to show that the composite refractive index of a mixture of two materials is related not to the refractive index of each, but to the electrical polarizability of each.

JohnFP · Post by **JohnFP** » Mon Feb 23, 2009 5:18 pm

Kaveh, do you have more information on this?

Kaveh · Post by **Kaveh** » Mon Feb 23, 2009 5:44 pm

John, I probably have the paper on this somewhere, but have to dig it up. He used the "Lorenz-Loretnz" equation (yes, two people!) and his experimental data were amazingly well matched to theory. OK, I think it is this one:

R.L. van Renesse and F.A.J. Bouts, Efficiency of Bleaching Agents for Holography, Optik, Vol. 38, (No. 2), 1973, pp. 156-168.

(Certainly those were the authors.)

If you email van Renesse he can probably send you a pdf.

vanrenesse · Post by **vanrenesse** » Wed Apr 29, 2009 11:57 pm

Thanks for your kind words on my early work, folks.
If you need any of my early papers, please drop me an email at ruud_van_renesse at zonnet dot nl
Rudolf van Renesse