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Rhombohedral photonic crystals by triple-exposure interference lithography: Complete photonic band gap
Authors:Nataliya D Kundikova  Yuri V Miklyaev  Denis G Pikhulya
Institution:1. CIRAD, UR 22-AGIRs, Campus international de Baillarguet, F-34398 Montpellier, France;2. Paris Ouest University, CNRS, UR LADYSS, 200 Avenue de la République, 92001 Nanterre Cedex, France;3. Vietnam National University of Agriculture, Center for Interdisciplinary Research on Rural Development, Ngo Xuan Quang Street, Trau Quy, Gia Lam, Ha Noi, Viet Nam;4. Nong Lam University, Faculty of Animal Science and Veterinary Medicine, Linh Trung, Thu Duc, Ho Chi Minh City, Viet Nam;5. National Institute of Veterinary Research, 86 Trung Chinh, Dong Da, Ha Noi, Viet Nam;6. Asian Institute of Technology, Box 4, Klong Luang, Pathumthani 12120, Thailand;7. Royal Veterinary College, Veterinary Epidemiology, Economics and Public Health Research Center, Royal College Street, London NW1 0TU, United Kingdom;8. University of Liege, Tropical Veterinary Institute, Quartier Vallée 2, avenue de Cureghem 6, 4000 Liege, Belgium;1. Institut für Umweltplanung (IUP), Gottfried Wilhelm Leibniz Universität, 30419 Hannover, Germany;2. Comparative Development and Cultural Studies, Universität Passau, 94032 Passau, Germany;3. Community Agro Biodiversity Centre (CABC), MSSRF, Kerala, India;4. Department of Crop Science – Georg August University, 37073 Gottingen, Germany;5. Geosciences Division, Alfred Wegener Institute, D-14473 Potsdam, Germany
Abstract:The band structure of 3D photonic crystal that could be synthesized by means of interference lithography with triple-exposure two-beam interference technique has been investigated. As a result of the geometry optimization the optimal conditions for maximal band gaps with different refractive index contrast have been obtained. The refractive index threshold for gap opening equaled to 2.14 has been predicted for this method of photonic crystals synthesis. This value is close to the refractive index thresholds of the best known structures. The continuous transition between simple cubic, face centered cubic and bulk centered cubic symmetries has been considered.
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