Herbert Voss has submitted another new pstricks package:

The authors of the package are Manuel Luque and Herbert Voss

This package allows to draw the diffraction patterns for different geometric forms of apertures for monochromatic light. The aperture stops can have rectangular, circular or triangular openings. The options available are the dimensions of the aperture under consideration and of the particular optical setting, e.g. the radius in case of an circular opening. Moreover one can choose the wavelength of the light (the associated color will be given automatically by the package). There are three commands, for rectangular, circular and triangular openings respectively:

psdiffractionRectangle[settings] psdiffractionCircular[settings] psdiffractionTriangle[settings]

The documentation is available in english, french, and german.

i've installed the package and updated the catalogue. users may view the catalogue entry at

http://www.tex.ac.uk/tex-archive/help/Catalogue/entries/pst-diffraction.html

or browse the package directory at

http://www.tex.ac.uk/tex-archive/graphics/pstricks/contrib/pst-diffraction/

(note that the documentation files are rather painfully large, and thus the zip of that directory is also pretty huge.)

thank you, herbert and manuel, for the new package.

Robin Fairbairns

For the CTAN team