Angular stability of cross-shaped-hole arrays metallic filters

R. Girard-Desprolet; S. Boutami; S. Lhostis; G. Vitrant

doi:10.1117/12.2023601

11 September 2013 Angular stability of cross-shaped-hole arrays metallic filters

R. Girard-Desprolet, S. Boutami, S. Lhostis, G. Vitrant

Proceedings Volume 8809, Plasmonics: Metallic Nanostructures and Their Optical Properties XI; 88092J (2013) https://doi.org/10.1117/12.2023601
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States

Abstract

Hole arrays metallic filters can be made independent to polarization at normal incidence. However they may lose this property for a non-normal incidence, being dependent to both polar and azimuthal incident angles. These variations of the filter characteristics according to light orientation and polarization are not desirable for most optical applications. Yet, for specific geometric parameters, high-stability can be obtained for cruciform-holes Ag-SiO₂ filters. In this article, we propose a review of cross-holes metallic filters, working with CMOS-compatible materials in the visible range. We find out the main geometrical parameters impacting the filters sensitivity to the incident angles and polarization and link their role to spectral stability. We give proper design rules to realize stable filters which may lead to optical sensors with very low spectral variations whatever the incidence and the polarization of the source.

Citation Download Citation

R. Girard-Desprolet, S. Boutami, S. Lhostis, and G. Vitrant "Angular stability of cross-shaped-hole arrays metallic filters", Proc. SPIE 8809, Plasmonics: Metallic Nanostructures and Their Optical Properties XI, 88092J (11 September 2013); https://doi.org/10.1117/12.2023601

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