Share Email Print
cover

Proceedings Paper

Specification of spectral line shape and dispersion of a medium by self-imaging and moire techniques
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Due to finite width of a spectral line, the visibility of the more fringes, formed by a grating and the image of another similar grating, produced by self-imaging technique, reduces by the increase of the image order. This effect has been exploited to specify the line shape, by taking Fourier transform from the visibility curve of the more fringes. The technique also renders to specify the non symmetric spectral line shapes, which are very difficult to determine by interferometric techniques. When a dispersive material, liquid or solid, is held between the gratings the visibility curve changes. It is shown that by comparing the Fourier transforms of the visibility curves obtained with and without sample, the dispersion function of the latter can be specified.

Paper Details

Date Published: 23 October 2001
PDF: 6 pages
Proc. SPIE 4398, Optical Measurement Systems for Industrial Inspection II: Application in Industrial Design, (23 October 2001); doi: 10.1117/12.445570
Show Author Affiliations
Mohammad Taghi Tavassoly, Tehran Univ. and Institute for Advanced Studies in Basic Sciences (Iran)
Mohammad Abolhassani, Tehran Univ. and Arak Univ. (Iran)


Published in SPIE Proceedings Vol. 4398:
Optical Measurement Systems for Industrial Inspection II: Application in Industrial Design

© SPIE. Terms of Use
Back to Top