Area scalable optically induced photorefractive photonic microstructures |
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| Affiliation: | 1. Department of Physics and Technology, School of Science, Wuhan University of Technology, 430063, Wuhan, Hubei, China;2. School of Information, Wuhan University of Technology, 430070, Wuhan, Hubei, China;1. Xi''An Catalyst Chemical Co., LTD, Northwest Institute for Nonferrous Metal Research, Xi''an 710016, China;2. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China;3. Faculty of Electrical Engineering, Czestochowa University Technology, Armii Krajowej 17, Czestochowa 42201, Poland;4. Ivan Franko National University of Lviv, Faculty of Chemistry, Lviv, Ukraine;1. Department of Electronic Engineering, Xiamen University, Xiamen 361005, China;2. Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), UMR 6252 CEA-CNRS-ENSICaen, Université de Caen, 14050 Caen, France;1. Institute of Chemistry, The Jan Kochanowski University, Swietokrzyska 15G, 25-406 Kielce, Poland;2. Institute of Chemistry, University of Agriculture, Balicka St. 122, 31-149 Kraków, Poland;3. Institute of Physics, The Jan Kochanowski University, Swietokrzyska 15G, 25-406 Kielce, Poland |
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| Abstract: | A convenient approach to fabricate area scalable two-dimensional photonic microstructures was experimentally demonstrated by multi-face optical wedges. The approach is quite compact and stable without complex optical alignment equipment. Large-area square lattice microstructures are optically induced inside an iron-doped lithium niobate photorefractive crystal. The induced large-area microstructures are analyzed and verified by plane wave guiding, Brillouin-zone spectroscopy, angle-dependent transmission spectrum, and lateral Bragg reflection patterns. The method can be easily extended to generate other more complex area scalable photonic microstructures, such as quasicrystal lattices, by designing the multi-face optical wedge appropriately. The induced area scalable photonic microstructures can be fixed or erased even re-recorded in the photorefractive crystal, which suggests potential applications in micro-nano photonic devices. |
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| Keywords: | Photonic microstructures Area scalable Photorefractive crystal Optically induced Multi-face optical wedges |
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