CHEN Yong-yi, QIN Li, WANG Li-jun, LIU Yi-chun. Numerical Study on The Unsymmetrical Transmission Phenomenon in Metal Gratings[J]. Chinese Journal of Luminescence, 2013,34(8): 1040-1045
CHEN Yong-yi, QIN Li, WANG Li-jun, LIU Yi-chun. Numerical Study on The Unsymmetrical Transmission Phenomenon in Metal Gratings[J]. Chinese Journal of Luminescence, 2013,34(8): 1040-1045 DOI: 10.3788/fgxb20133408.1040.
Numerical Study on The Unsymmetrical Transmission Phenomenon in Metal Gratings
A kind of metal gratings based on surface plasmon coupling was presented in this paper. The metal grating has different transmission rate according to incident direction because of different surface plasmon coupling conditions. The unsymmetrical transmission phenomenon appears for the Au-SiO
2
grating when the periodic is 500 nm and the filling factor is 0.7
particularly for wavelength from 565 to 589 nm. A maximum transmission contrast of more than 310
4
is found at filling factor 0.662. When the thickness of Au is 60 nm
the transmission contrast is more than 5 during 570~630 nm
and the maximum transmission is 43%. When the periodic is 1 100 nm
the transmission contrast is more than 5 during 1 530~1 590 nm
which satisfies for the mid-infrared applications.
关键词
Keywords
references
Scalora M, Dowling J P, Bowden C M, et al. The photonic band edge optical diode [J]. J. Appl. Phys., 1994, 76(4):2023-2026.[2] Tocci M D, Bloemer M J, Scalora M, et al. Thin-film nonlinear optical diode [J]. Appl. Phy. Lett., 1995, 66(18):2324-2326.[3] Lin X S, Yan J H, Wu L J, et al. High transmission contrast for single resonator based all-optical diodes with pump-assisting [J]. Opt. Exp., 2008, 16(25):20949-20954.[4] Zhou H, Zhou K F, Hu W, et al. All-optical diodes based on photonic crystal molecules consisting of nonlinear defect pairs [J]. J. Appl. Phys., 2006, 99(12):123111-1-9.[5] Mingaleev S F, Kivshar Y S. Nonlinear transmission and light localization in photonic-crystal waveguides [J]. J. Opt. Soc. Am. B, 2002, 19(9):2241-2249.[6] Gevorgyan A H, Harutyunyan M Z. Chiral photonic crystals with an anisotropic defect layer [J]. Phys. Rev. E, 2007, 76(3):031701-1-9.[7] Feise M W, Shadrivov I V, Kivshar Y S. Bistable diode action in left-handed periodic structures [J]. Phys. Rev. E, 2005, 71(3):037602-1-4.[8] Khanikaev A B, Steel M J. Low-symmetry magnetic photonic crystals for nonreciprocal and unidirectional devices [J]. Opt. Exp., 2009, 17(7):5265-5272.[9] Maier S A. Plasmonics: Fundamentals and Applications [M]. United Kingdom: Springer, 2007:21.[10] Han J, Fan Y C, Zhang Z R. Propagation of surface plasmon polaritons in a ring resonator with PT-symmetry [J]. Chin. J. Lumin.(发光学报), 2012, 33(8):901-904 (in Chinese).[11] Yang Z L, Fang W, Yang Y Q. Two-photon-excited fluorescence enhancement caused by surface plasmon enhanced exciting light [J]. Chin. J. Lumin.(发光学报), 2013, 34(2):240-244 (in Chinese).[12] Zheng L, Zhao Y P. Identification of Pu'er teas with different fermentation time by surface-enhanced raman scattering technology[J]. Chin. J. Lumin.(发光学报), 2013, 34(2):230-234 (in Chinese).[13] Hu X, Zhang Y, Xu X, et al. Nanoscale surface plasmon all-optical diode based on plasmonic slot waveguides [J]. Plasmonics, 2011, 6(4):619-624[14] Yang Y, Turnbull G A, Samuel I D W. Hybrid optoelectronics: A polymer laser pumped by a nitride light-emitting diode [J]. Appl. Phys. Lett., 2008, 92(16):163306-1-3.[15] Hide F, Schwartz B J, Daz-Garca M A, et al. Laser emission from solutions and films containing semiconducting polymer and titanium dioxide nanocrystals [J]. Chem. Phys. Lett., 1996, 256(4-5):424-430.[16] Barnes W L, Dereu A, Ebbesen T W. Surface plasmon subwavelength optics [J]. Nature, 2003, 424(14):824-830.[17] Ditlbacher H, Krenn J R, Hohenau A, et al. Efficiency of local light-plasmon coupling [J]. Appl. Phys. Lett., 2003, 83(18):3665-3667.[18] Ghaemi H F, Thio T, Grupp D E. Surface plasmons enhance optical transmission through subwavelength holes [J]. Phys. Rev. B, 1998, 58(11):6779-6782.[19] Lin L, Reeves R J, Blaikie R J. Surface-plasmon-enhanced light transmission through planar metallic films [J]. Phys. Rev. B, 2006, 74(15):155407-1-6.[20] Guillaume M, Nikitin A Y, Klein M J K, et al. Observation of enhanced transmission for s-polarized light through a subwavelength slit [J]. Opt. Exp., 2010, 18(9):9722-9727.