31 August 2017 Limited-size guided-mode resonance filters under focused beams
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Abstract
We investigate the impact of focused beams on metal-dielectric guided-mode-resonance filters. Under a planewave illumination, these filters show a resonant transmission at an easily tunable wavelength and a good angular acceptance. Although guided-mode resonance is involved, calculations show that under a focused beam the lateral extension of the electromagnetic field inside the waveguide is limited to the width of the beam. We investigate evolution of this lateral extension and the resonant transmission with the size of the beam, as well as the impact of a tilted beam. Guided-mode-resonance filtering under a focused beam is illustrated through the example of a Cassegrain microscope lens. A process for the fabrication of simple metal-dielectric filters is also presented.
Conference Presentation
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Antoine Bierret, Antoine Bierret, Grégory Vincent, Grégory Vincent, Julien Jaeck, Julien Jaeck, Jean-Luc Pelouard, Jean-Luc Pelouard, Fabrice Pardo, Fabrice Pardo, Riad Haïdar, Riad Haïdar, } "Limited-size guided-mode resonance filters under focused beams", Proc. SPIE 10354, Nanoengineering: Fabrication, Properties, Optics, and Devices XIV, 1035406 (31 August 2017); doi: 10.1117/12.2273004; https://doi.org/10.1117/12.2273004
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