Resonance absorber

Details Resonance absorber Resonance absorber

1981-03-26

1984-04-10

Arnold, Bruce Y.

G02B 528, G02B 522

Patent

active

044417896

ABSTRACT:
An improvement in a resonance absorber of refractive index n and absorption coefficient k wherein a medium of refractive index n.sub.a is disposed frontally thereof is disclosed in which the thickness of the absorption material is made equal to m.lambda./(4n), where m is the whole number closest to 2na/(.pi.k) where n equals n.sub.a and wherein the interference layers have alternatingly low and high refractive indices in that order when m is even and alternatingly high and low refractive indices in that order when m is odd.

REFERENCES:
patent: 4048039 (1977-09-01), Daxinger

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