Etalons with dispersive coatings

Details Etalons with dispersive coatings Etalons with dispersive coatings

1992-03-25

1994-03-01

Arnold, Bruce Y.

Optical: systems and elements

Light interference

Produced by coating or lamina

359586, 356352, G02B 528, G02B 110, G01B 902

Patent

active

052913325

ABSTRACT:
An etalon (10) is provided with a coating (12) so as to selectively pass spectral lines of interest. The etalon includes a substrate (14) having a first major surface and a second, opposite major surface. The etalon further includes a coating, preferably a rugate coating (12), formed upon at least one of the major surfaces. The rugate coating has a spatially varying index of refraction profile through a depth thereof. The profile is selected so as to provide the element with a prescribed dispersion characteristic that matches a dispersion characteristic of a source of the radiation signal.

REFERENCES:
patent: 4170416 (1979-10-01), Fencil
patent: 4377324 (1983-03-01), Durand et al.
patent: 4536089 (1985-08-01), Siebert
patent: 4547801 (1985-10-01), Haisma et al.
patent: 4583822 (1986-04-01), Southwell
patent: 4609822 (1986-09-01), Roche
patent: 4925259 (1990-05-01), Emmett
patent: 4952025 (1990-08-01), Gunning, III
patent: 4968117 (1990-11-01), Chern et al.

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