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New challenges in optical coating design

: Stenzel, O.

Kramer, B. ; Deutsche Physikalische Gesellschaft e.V. -DPG-, Arbeitskreis Festkörperphysik:
Advances in Solid State Physics 43
Berlin: Springer, 2003
ISBN: 3-540-40150-4
Deutsche Physikalische Gesellschaft, Arbeitskreis Festkörperphysik (Frühjahrstreffen) <2003, Dresden>
Conference Paper
Fraunhofer IOF ()
optical coating; metal island film; resonant grating waveguide structure; inhomogeneous coating

Modern mathematical algorithms allow to theoretically generate thin film designs that fit nearly any reasonable specification. Nevertheless, as practice has shown, the gap between calculated and technologically achievable characteristics may be significant, so that the search for qualitatively new design and production tools is still in progress and represents one of the most complex challenges in thin optical coating theory and technology today. Such new design challenges include the incorporation of gradient index layers into classical designs, the design of rugate filters, or novel filter concepts that are based on resonant grating waveguide structures. Moreover, the development of novel composite coating materials is expected to facilitate the optimisation of future designs.