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Proceedings Paper

Design of optical coatings
Author(s): Claus W. Gunkel
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Paper Abstract

A highly sophisticated antireflection coating and a cut-on-filter - designed by the Leitz program "RDP" - will be pointed out. The program runs on a VAX 8530 and allows to calculate reflectance, transmittance and phase of randomly polarized light which interacts with marginal surfaces. The number of layers is not limited. Some or even all layers are allowed to be anistropic. Up to four layers may be inhomogeneous both in refractive indices and absorption constants. At a time two thicknesses, two refractive indices and absorption constants as well as the angles of incidence may be varied independently in each run. The calculated values will be compared with the results of measurements. The antireflection coating is evaporated in a Balzers high vacuum evaporation plant, controlled by the process unit BPU 420, whereas the cut-on filter is evaporated in a Leybold box coater with Leycom III and two electron-beam guns.

Paper Details

Date Published: 1 August 1990
PDF: 6 pages
Proc. SPIE 1270, Optical Thin Films and Applications, (1 August 1990); doi: 10.1117/12.20385
Show Author Affiliations
Claus W. Gunkel, Wild Leitz GmbH (Germany)


Published in SPIE Proceedings Vol. 1270:
Optical Thin Films and Applications
Reinhard Herrmann, Editor(s)

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