Admittance diagrams of accidental and premeditated optical inhomogeneities in coatings

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DOIResolve DOI: http://doi.org/10.1364/AO.41.004671
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TypeArticle
Journal titleApplied Optics
Volume41
Issue22
Pages46714679; # of pages: 9
AbstractIntuitive interpretation of the effect of inhomogeneous layers in optical coatings is often difficult. I use admittance diagrams to interpret some properties of accidental and premeditated optical inhomogeneities. The effect of accidental homogeneous and inhomogeneous transition layers on the spectral properties of a single film is presented. I show that such layers affect the envelope of the reflectance spectra of thick films, effects that are extended to the shorter wavelength range. Using the same approach, I evaluate the properties and limitations of quintic antireflection coatings and show that the suppression of harmonics in rugate filters is due to an absentee-layer phenomenon and not solely to an antireflection effect as is often suggested.
Publication date
PublisherOptical Society of America
LanguageEnglish
AffiliationNRC Institute for Microstructural Sciences; National Research Council Canada
Peer reviewedYes
NPARC number21268064
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Record identifierc1c6bf0d-a809-4866-b198-32509c98fb2b
Record created2013-04-05
Record modified2016-05-09
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