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Proceedings Paper

Determination of the refractive index of human serum by using a removable compact disk grating
Author(s): Alexandru M. Preda; Eugen Nicolae Scarlat; Liliana Preda; Mihaela Scarlat
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Paper Abstract

Here we use a blank recordable compact disk as a diffractive device. A simple model for the disk grating is proposed. After the disk is properly cut, small pieces of it are completely immersed in the liquid of interest. Such a small piece is in fact a single-use reflective grating and we call it removable compact disk grating. Because it's very cheap and, for this reason, easy to remove it, the compact disk grating is a suitable device for contaminating fluids and particularly for human serum. The principle of the method allows to calculate the refractive index of human serum by measuring the angular displacement of the diffracted maxima, or by fringe counting in a grating interferometer.

Paper Details

Date Published: 9 August 2002
PDF: 8 pages
Proc. SPIE 4762, ALT'01 International Conference on Advanced Laser Technologies, (9 August 2002); doi: 10.1117/12.478661
Show Author Affiliations
Alexandru M. Preda, Univ. Politehnica of Bucharest (Romania)
Eugen Nicolae Scarlat, Univ. Politehnica of Bucharest (Romania)
Liliana Preda, Univ. Politehnica of Bucharest (Romania)
Mihaela Scarlat, Al. Trestioreanu Institute of Oncology (Romania)


Published in SPIE Proceedings Vol. 4762:
ALT'01 International Conference on Advanced Laser Technologies

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