Annular aperture arrays: study in the visible region of the electromagnetic spectrum
Optics Letters, Vol. 30, Issue 13, pp. 1611-1613 (2005)
http://dx.doi.org/10.1364/OL.30.001611
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Abstract
Baida and Van Labeke recently proposed a structure that exhibits a supertransmission of light through an array of nanometric coaxial apertures in a metallic film that has been named an annular aperture array (AAA) [Opt. Commun.209, 17 (2002); Phys. Rev. B67, 155314 (2003); J. Microsc.213, 140 (2003)]. We present the first experimental study, to our knowledge, of an AAA structure in the visible region. For technological reasons, the structure under study does not produce a supertransmission of 80% as in Baida and Van Labeke [Opt. Commun.209, 17 (2002)]. We built the nanostructure and experimentally recorded its far-field spectral response. This transmission shows only one broad band with a maximum around lambda=700 nm, giving a maximum efficiency around 17%. A finite-difference time-domain simulation reproduces quite well the obtained transmission spectrum.
© 2005 Optical Society of America
OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(120.2440) Instrumentation, measurement, and metrology : Filters
(240.7040) Optics at surfaces : Tunneling
Citation
J. Salvi, M. Roussey, F. I. Baida, M.-P. Bernal, A. Mussot, T. Sylvestre, H. Maillotte, D. Van Labeke, A. Perentes, I. Utke, C. Sandu, P. Hoffmann, and B. Dwir, "Annular aperture arrays: study in the visible region of the electromagnetic spectrum," Opt. Lett. 30, 1611-1613 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-13-1611
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