On Fourier's Phase and Gradient Index Optical Design
Keyword(s):
AbstractGradient index or rugate optical filters are continuous generalizations of the familiar quarterwave stack which find widespread applications in sensor hardening. In the design of a filter or mirror there are infinitely many refractive index profiles n(x) whose wavelength-dependent reflectance R(λ) is specified as a design objective. The relationship between R(λ) and n(x) is nearly that of a Fourier-transform pair. Exploiting this relationship, specifically the physically indeterminate phase of the Fourier transforms, permits constrained optimization of rugate designs. In this contribution we outline the approach of optimal phase modulation and indicate by examples its application to problems in optical limiting.
1994 ◽
Vol 52
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pp. 918-919
Keyword(s):
2014 ◽
Vol 214
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pp. 48-57
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2017 ◽
Vol 28
(01)
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pp. 1750001
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2014 ◽
Vol 1
(2)
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pp. 87-97
1994 ◽
Vol 04
(04)
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pp. 477-488
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2010 ◽
Vol 28
(4)
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pp. 360-364
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