The spatial distribution of surface electromagnetic waves on a one-dimensional photonic crystal with a polymeric grating on top is mapped using a multiheterodyne scanning near-field optical microscope. The grating opens a bandgap. At the band edges, a stationary field formed by two surface waves with opposite propagation constants and almost identical amplitudes is produced. Field intensity maxima are localized to the grating peaks or grooves, depending on the wavelength. Far from the bandgap, we identify surface waves coupled via either the 0 or the -1 order of the grating. The corresponding phase profiles indicate that these waves propagate in opposite directions.

Sfez, T., Descrovi, E., Dominici, L., Nakagawa, W., Michelotti, F., Giorgis, F., et al. (2008). Near-field analysis of surface electromagnetic waves in the bandgap region of a polymeric grating written on a one-dimensional photonic crystal. APPLIED PHYSICS LETTERS, 93(6) [10.1063/1.2970961].

Near-field analysis of surface electromagnetic waves in the bandgap region of a polymeric grating written on a one-dimensional photonic crystal

DOMINICI, LORENZO;
2008-01-01

Abstract

The spatial distribution of surface electromagnetic waves on a one-dimensional photonic crystal with a polymeric grating on top is mapped using a multiheterodyne scanning near-field optical microscope. The grating opens a bandgap. At the band edges, a stationary field formed by two surface waves with opposite propagation constants and almost identical amplitudes is produced. Field intensity maxima are localized to the grating peaks or grooves, depending on the wavelength. Far from the bandgap, we identify surface waves coupled via either the 0 or the -1 order of the grating. The corresponding phase profiles indicate that these waves propagate in opposite directions.
2008
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - FISICA DELLA MATERIA
English
Con Impact Factor ISI
cements; crystal atomic structure; electromagnetic wave diffraction; electromagnetic wave scattering; electromagnetic waves; electromagnetism; energy gap; fluid dynamics; fluid mechanics; photonic crystals; powders; size distribution; surface waves; water waves; waves; band edges; band gaps; band-gap region; field intensity; near fields; one-dimensional photonic crystal; propagation constants; scanning near-field optical microscope; spatial distribution of; surface electromagnetic waves; surface analysis
http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=APPLAB000093000006061108000001&idtype=cvips&doi=10.1063/1.2970961&prog=normal
Sfez, T., Descrovi, E., Dominici, L., Nakagawa, W., Michelotti, F., Giorgis, F., et al. (2008). Near-field analysis of surface electromagnetic waves in the bandgap region of a polymeric grating written on a one-dimensional photonic crystal. APPLIED PHYSICS LETTERS, 93(6) [10.1063/1.2970961].
Sfez, T; Descrovi, E; Dominici, L; Nakagawa, W; Michelotti, F; Giorgis, F; Herzig, H
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/8006
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