Multilayer High Reflective Coating Designs Achieving Broadband 90° Phase Change

W. H. Southwell

doi:10.1117/12.957727

13 November 1980 Multilayer High Reflective Coating Designs Achieving Broadband 90° Phase Change

W. H. Southwell

Proceedings Volume 0190, Los Alamos Conference on Optics 1979; (1980) https://doi.org/10.1117/12.957727
Event: Los Alamos Conference on Optics '79, 1979, Los Alamos, United States

Abstract

For non-normal incidence angles, it has been shown that the polarization state may be controlled by reflection through the use of specially designed multilayer coatings. An optimization I has been used to determine layer thickness for a coating design tha. produces a 90° phase shift between the p and s polarization comppnents over a wavelength range of Δλ/λ0 = ± 5%. A particular 20 layer design produces 90° ± 1° phase shift over this spectral range while maintaining an average reflectivity of over 99.9%. A tolerance analysis on this design indicates that the coating layers must be deposited within ± 1% in order to achieve ± 3° phase shift over the spectral range.

Citation Download Citation

W. H. Southwell "Multilayer High Reflective Coating Designs Achieving Broadband 90° Phase Change", Proc. SPIE 0190, Los Alamos Conference on Optics 1979, (13 November 1980); https://doi.org/10.1117/12.957727

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