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We present experimental characterizations of 1D crossed Guided Mode Resonant Filters (GMRFs) in the near infrared fabricated by nanoimprint lithography. We will show that subwavelength gratings up to 4″ diameter can be fabricated using such techniques. We compare the performances of the GMRFs to the performances of Fabry-Perot filters and discuss the sensitivity to fabrication inhomogeneity of these...
Resonant grating filters (RGF) are basically a planar waveguide with a sub-wavelength periodic structuration that transmits and reflects light specularly. It is well known that the reflectivity of such a structure presents anomalies (or peaks) versus the wavelength, generated by the coupling and out-coupling of a mode of the waveguide. These peaks can be tailored in order to create free-space narrow...
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