Plasmonic Properties of β-Sn Nanoparticles in Ordered and Disordered Arrangements
This work investigates the localized surface plasmon resonance (LSPR) of β -Sn also known as white tin. Recently, studies on arrays of β -Sn nanoparticles have shown that these arrays possess strong optical features caused by diffractive effects in the particle grating (Johansen et al., Phys Rev B 8...
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Veröffentlicht in: | Plasmonics (Norwell, Mass.) Mass.), 2013-03, Vol.8 (1), p.153-158 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | This work investigates the localized surface plasmon resonance (LSPR) of
β
-Sn also known as white tin. Recently, studies on arrays of
β
-Sn nanoparticles have shown that these arrays possess strong optical features caused by diffractive effects in the particle grating (Johansen et al., Phys Rev B 84:113405–113408,
2011
). In the presence of the grating, the LSPR could not clearly be distinguished in the spectra. To get a better understanding of the plasmonic properties of the particles, we have now eliminated the diffractive effects by placing the particles in a random distribution. The particles were fabricated by electron beam lithography on a fused silica substrate and investigated by optical transmission measurements. In the random configuration, a clear LSPR is observed at 530 nm for particles with a diameter of 155 nm and a height of 50 nm. |
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ISSN: | 1557-1955 1557-1963 |
DOI: | 10.1007/s11468-012-9445-2 |