caa a22 4500 463215877 CHVBK 20180405153156.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s00339-006-3842-3 doi (NATIONALLICENCE)springer-10.1007/s00339-006-3842-3 Tunable negative refraction by electro-optical control in two-dimensional photonic crystal [Elektronische Daten] [K. Ren, Z.Y. Li, X. Ren, B. Cheng, D. Zhang] We analyze negative refraction in two-dimensional photonic crystals that are made from electro-optical active materials. Application of an electric field to the photonic crystal changes the dielectric constant of the material and consequently modifies the photonic band and dispersion properties. We have investigated focusing properties of the photonic crystal slab lens at different frequencies within the first two bands and under various magnitudes of electric field. The simulation results reveal that one can dynamically tune negative refraction by means of index-tunable photonic crystals. Springer-Verlag, 2007 Ren K. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut Li Z.Y. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut Ren X. Department of Physics, Beijing Normal University, 100875, Beijing, P.R. China aut Cheng B. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut Zhang D. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut Applied Physics A Springer-Verlag 87/2(2007-05-01), 181-185 0947-8396 87:2<181 2007 87 339 https://doi.org/10.1007/s00339-006-3842-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-006-3842-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ren K. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut NATIONALLICENCE 700 1- Li Z.Y. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut NATIONALLICENCE 700 1- Ren X. Department of Physics, Beijing Normal University, 100875, Beijing, P.R. China aut NATIONALLICENCE 700 1- Cheng B. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut NATIONALLICENCE 700 1- Zhang D. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100080, Beijing, P.R. China aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 87/2(2007-05-01), 181-185 0947-8396 87:2<181 2007 87 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer