摘要We present a numerical study of left-handed metamaterials (LHMs) composed of double cross pairs at visible frequency. The S-parameter retrieval method is adopted to confirm the negative refractive characteristic of this design. Compared with fishnet LHMs, the proposed cross LHMs have a much lower loss, which will greatly facilitate practical applications. It is also found that, with the same size of resonant cells, the cross LHMs have a higher frequency than fishnet LHMs, which is explained using a simple effective LC circuit model.
Abstract：We present a numerical study of left-handed metamaterials (LHMs) composed of double cross pairs at visible frequency. The S-parameter retrieval method is adopted to confirm the negative refractive characteristic of this design. Compared with fishnet LHMs, the proposed cross LHMs have a much lower loss, which will greatly facilitate practical applications. It is also found that, with the same size of resonant cells, the cross LHMs have a higher frequency than fishnet LHMs, which is explained using a simple effective LC circuit model.
[1] Vesalago V G 1968 Sov. Phys. Usp. 10 509 [2] Shelby R A, Smith D R and Schultz S 2001 Science 292 77 [3] Patanjali V P, Wentao T L, Plarenta V and Srinivas S 2003 Nature 426 404 [4] Pendry J B 2003 Opt. Express 11 755 [5] Seddon N and Bearpark T 2003 Science 302 1537 [6] Zhang F L, Zhao Q, Liu Y H, Luo C R and Zhao X P 2004 Chin. Phys. Lett. 21 1330 [7] Zhao X P, Zhao Q, Zhang F L, Zhao W and Liu Y H 2006 Chin. Phys. Lett. 23 99 [8] Zhou J, Zhang L, Tuttle G, Koschny T and Soukoulis C M2006 Phys. Rev. B 73 041101 [9] Zhou X and Zhao X P 2007 Appl. Phys. Lett. 91181908 [10] Zhu W R, Zhao X P and Guo J Q 2008 Appl. Phys.Lett. 92 241116 [11] Yan C C, Cui Y P, Wang Q and Zhuo S C 2008 Chin.Phys. Lett. 25 482 [12] Zhang S, Fan W J, Panoiu N C, Malloy K J, Osgood R M andBrueck S R J 2005 Phys. Rev. Lett. 95 137404 [13] Dolling G, Enkrich C, Wegener M, Soukoulis C M and LindenS 2006 Science 312 892 [14] Liu N, Guo H C, Fu L W, Kaiser S, Schweizer H and GiessenH 2008 Nature Mater 7 31 [15] Dolling G, Wegener M, Soukoulis C M and Linden S 2007 Opt. Lett. 32 53 [16] Zhang S, Fan W J, Panoiu N C, Malloy K J, Osgood R M andBrueck S R J 2006 Opt. Express 14 6778 [17] Valentine J, Zhang S, Zentgraf T, Ulin-Avila E, Genov DA, Bartal G and Zhang X 2008 Nature 455 376 [18] Vesekago V G and Narimanov E E 2006 Nature Mater 5 759 [19] Imhof C and Zengerle R 2009 Appl. Phys. A 9445 [20] Kafesaki M, Tsiapa I, Katsarakis N, Koschny T, SoukoulisC M and Economou E N 2007 Phys. Rev. B 75 235114 [21] Smith D R, Schultz S, Markos P and Soukoulis C M 2002 Phys. Rev. B 65 195104 [22] Depine R A and Lakhtakia A 2004 Microwave Opt.Technol. Lett. 41 315 [23] Dolling G, Enkrich C, Wegener M, Soukoulis C M and LindenS 2006 Opt. Lett. 31 1800
2009, Vol. 26 
