Optical response of blazed and overhanging gratings using oblique chandezon transformations

In this work we present a new oblique transformation technique which allows the modelling of the optical response of highly blazed and overhanging grating surfaces using a differential method. The new technique when implemented as computer code is an order of magnitude faster than the conventional d...

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Bibliographic Details
Published in:Journal of modern optics 1997-06, Vol.44 (6), p.1073-1080
Main Authors: Preist, T. W., Harris, J. B., Wanstall, N. P., Sambles, J. R.
Format: Article
Language:English
Subjects:
Diffraction and scattering
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gratings
Optical elements, devices, and systems
Optics
Physics
Wave optics
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Summary:In this work we present a new oblique transformation technique which allows the modelling of the optical response of highly blazed and overhanging grating surfaces using a differential method. The new technique when implemented as computer code is an order of magnitude faster than the conventional differential method when applied to blazed gratings with no overhang. Applying it to severely blazed overhanging gratings, which cannot be modelled with the conventional approach, yields new insight into an area of grating theory which has previously remained largely unexplored.
ISSN:0950-0340
1362-3044
DOI:10.1080/09500349708230720