Gradient-Index Thin Films: An Emerging Optical Coating Technology

W. Gunning

doi:10.1117/12.950039

27 February 1989 Gradient-Index Thin Films: An Emerging Optical Coating Technology

W. Gunning

Proceedings Volume 1019, Thin Film Technologies III; (1989) https://doi.org/10.1117/12.950039
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

The possibility of generating optical thin-film structures with continuous variation in refractive index enables the design and fabrication of complex filter structures. New methods for coating design, deposition monitoring, process control and material engineering are evolving. A particular type of filter technology that draws on all of these developments is the rugate filter, a structure having a periodic re-fractive index profile. Advances in this area will not only enable the realization of gradient-index structures, but will provide new opportunities for accurate fabrication of conventional thin-film structures.

Citation Download Citation

W. Gunning "Gradient-Index Thin Films: An Emerging Optical Coating Technology", Proc. SPIE 1019, Thin Film Technologies III, (27 February 1989); https://doi.org/10.1117/12.950039

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