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25 April 2012 Manifestation of spatial filtering performed by 3D photonic crystals
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Abstract
We report first experimental evidences of spatial filtering of light beams in three-dimensional photonic crystals. The photonic crystals were fabricated in a glass bulk, where refractive index was modified by applying femtosecond laser pulses. We observe the modification of the angular spectra (the far field) in the central diffraction maximum of the transmitted radiation in accordance with the theory of spatial filtering.
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Lina Maigyte, Titas Gertus, Martynas Peckus, Jose Trull, Crina M. Cojocaru, Valdas Sirutkaitis, and Kestutis Staliunas "Manifestation of spatial filtering performed by 3D photonic crystals", Proc. SPIE 8425, Photonic Crystal Materials and Devices X, 84251Q (25 April 2012); https://doi.org/10.1117/12.922259
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