Enhanced transmission via evanescent-to-propagating conversion in metallic nanoslits: Role of Rayleigh anomalies
We analyze the enhanced transmission phenomenon in subwavelength slit structures near a dielectric interface. In particular, we investigate the influence of Rayleigh anomalies in the spectral position as well as in the bandwidth of Fabry-Perot resonances excited on such structures. We consider the c...
Guardado en:
| Autor principal: | |
|---|---|
| Otros Autores: | |
| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
Institute of Physics Publishing
2014
|
| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| Sumario: | We analyze the enhanced transmission phenomenon in subwavelength slit structures near a dielectric interface. In particular, we investigate the influence of Rayleigh anomalies in the spectral position as well as in the bandwidth of Fabry-Perot resonances excited on such structures. We consider the cases of propagating and evanescent incidence, i.e., when the metallic structure is illuminated from the dielectric medium side with an incidence angle larger than the critical angle. We show that Rayleigh anomalies strongly interact with Fabry-Perot resonances, and make them deviate from the spectral positions predicted by the infinitely thin slit model. To get physical insight into this problem, we develop a simplified electromagnetic model and show that there is a close correspondence between the transmitted response of the structure and the behavior of certain function that depends on the geometrical and the illumination parameters. Our results suggest that Rayleigh anomalies strongly modify the electromagnetic response of the structure due to the existence of surface waves that modify the coupling condition between the fields inside and outside the slits. Besides, we show that even in absence of Fabry-Perot resonances, it is possible to produce enhanced transmission by taking advantage of the pseudoperiodicity condition of the fields. © 2014 IOP Publishing Ltd. |
|---|---|
| Bibliografía: | Park, D.J., Choi, S.B., Ahn, K.J., Kim, D.S., Kang, J.H., Park, Q.-H., Jeong, M.S., Ko, D.-K., Experimental verification of surface plasmon amplification on a metallic transmission grating (2008) Phys. Rev., 77. , 10.1103/PhysRevB.77.115451 B 115451 Durant, S., Liu, Z., Steele, J.M., Zhang, X., Theory of the transmission properties of an optical far-field superlens for imaging beyond the diffraction limit (2006) Journal of the Optical Society of America B: Optical Physics, 23 (11), pp. 2383-2392 Hao, X., Kuang, C., Li, Y., Liu, X., Evanescent-wave-induced frequency shift for optical superresolution imaging (2013) Opt. Lett., 38, pp. 2455-2458. , 10.1364/OL.38.002455 Lee, J.W., Seo, M.A., Park, D.J., Jeoung, S.C., Park, Q.H., Lienau, Ch., Kim, D.S., Terahertz transparency at Fabry-Perot resonances of periodic slit arrays in a metal plate: Experiment and theory (2006) Optics Express, 14 (26), pp. 12637-12643. , http://www.opticsexpress.org/DirectPDFAccess/ACD14466-BDB9-137E- C35FD805E6469D83_121379.pdf?da=1&id=121379&seq=0&CFID= 37888243&CFTOKEN=18903304, DOI 10.1364/OE.14.012637 Gadsdon, M.R., Hooper, I.R., Sambles, J.R., Optical resonances on sub-wavelength silver lamellar gratings (2008) Opt. Express, 16, pp. 22003-22028. , 10.1364/OE.16.022003 1094-4087 Anishur Rahman, A.T.M., Majewski, P., Vasilev, K., Extraordinary optical transmission: Coupling of the Wood-Rayleigh anomaly and the Fabry-Perot resonance (2012) Opt. Lett., 37, pp. 1742-1744. , 10.1364/OL.37.001742 Kim, S.H., Lee, C.M., Park, D.W., Noh, S.K., Sim, S.B., Kim, J., Kim, G.H., Yee, K.J., Evolution of surface plasmon resonance with slab thickness in hybrid nano-structures of Au/InGaAs slab waveguide (2013) Appl. Phys., 115, pp. 77-83. , 10.1007/s00340-013-5575-2 1432-0649 B Eremina, E., Eremin, Y., Grishina, N., Wriedt, T., Analysis of light scattering in the evanescent waves area by a cylindrical nanohole in a noble-metal film (2008) Opt. Commun., 281, pp. 3581-3586. , 10.1016/j.optcom.2008.03.039 0030-4018 Eremina, E., Eremin, Y., Grishina, N., Wriedt, T., Spectral scattering properties of a nanohole in a noble-metal film in the evanescent waves area (2009) J. Quant. Spectrosc. Radiat. Transfer, 110, pp. 1518-1525. , 10.1016/j.jqsrt.2009.01.010 0022-4073 Lester, M., Skigin, D.C., Coupling of evanescent s-polarized waves to the far field by waveguide modes in metallic arrays (2007) Journal of Optics A: Pure and Applied Optics, 9 (1), pp. 81-87. , DOI 10.1088/1464-4258/9/1/014, PII S1464425807319223, 014 Skigin, D.C., Lester, M., Study of resonant modes of a periodic metallic array near a dielectric interface: Evanescent-to-propagating coupling via surface plasmon excitation (2006) Journal of Optics A: Pure and Applied Optics, 8 (3), pp. 259-267. , DOI 10.1088/1464-4258/8/3/006, PII S1464425806100331 Porto, J.A., Garcia-Vidal, F.J., Pendry, J.B., Transmission resonances on metallic gratings with very narrow slits (1999) Physical Review Letters, 83 (14), pp. 2845-2848 Garcia-Vidal, F.J., Martin-Moreno, L., Moreno, E., Kumar, L.K.S., Gordon, R., Transmission of light through a single rectangular hole in a real metal (2006) Physical Review B - Condensed Matter and Materials Physics, 74 (15), p. 153411. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: PhysRevB.74.153411&metadataPrefix=oai_apsmeta_2, DOI 10.1103/PhysRevB.74.153411 Skigin, D.C., Transmission through subwavelength slit structures with a double period: A simple model for the prediction of resonances (2009) J. Opt. A: Pure Appl. Opt., 11 (10). , 10.1088/1464-4258/11/10/105102 1464-4258 105102 Ghaemi, H.F., Thio, T., Grupp, D.E., Ebbesen, T.W., Lezec, H.J., Surface plasmons enhance optical transmission through subwavelength holes (1998) Physical Review B - Condensed Matter and Materials Physics, 58 (11), pp. 6779-6782 Astilean, S., Lalanne, Ph., Palamaru, M., Light transmission through metallic channels much smaller than the wavelength (2000) Optics Communications, 175 (4), pp. 265-273. , DOI 10.1016/S0030-4018(00)00462-4 Takakura, Y., Optical resonance in a narrow slit in a thick metallic screen (2001) Physical Review Letters, 86 (24), pp. 5601-5603. , DOI 10.1103/PhysRevLett.86.5601 Gordon, R., Brolo, A.G., Increased cut-off wavelength for a subwavelength hole in a real metal (2005) Optics Express, 13 (6), pp. 1933-1938. , http://www.opticsexpress.org/view_file.cfm?doc= %24%29%5C%3B%28JP%20%20%0A&id=%25%28%2C%23%28JL%24%20%0A, DOI 10.1364/OPEX.13.001933 Gordon, R., Light in a subwavelength slit in a metal: Propagation and reflection (2006) Physical Review B - Condensed Matter and Materials Physics, 73 (15), p. 153405. , http://oai.aps.org/oai?verb=GetRecord&Identifier=oai:aps.org: PhysRevB.73.153405&metadataPrefix=oai_apsmeta_2, DOI 10.1103/PhysRevB.73.153405 Qumerais, P., Barbara, A., Le Perchec, J., Lopez-Rios, T., Efficient excitation of cavity resonances of subwavelength metallic gratings (2005) Journal of Applied Physics, 97 (5), pp. 1-4. , DOI 10.1063/1.1854727, 053507 Medina, F., Mesa, F., Skigin, D.C., Extraordinary transmission through arrays of slits: A circuit theory model (2010) IEEE Trans. Microw. Theory Tech., 58, pp. 105-115. , 10.1109/TMTT.2009.2036341 0018-9480 |
| ISSN: | 20408978 |
| DOI: | 10.1088/2040-8978/16/4/045004 |