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Title

Optical properties of nanoengineered gold blocks

Author(s)

Ueno, Kosei;  Mizeikis, Vygantas;  Juodkazis, Saulius;  Sasaki, Keiji;  Misawa, Hiroaki

Abstract

We report on control over the extinction spectrum of tetragonal gold nanoblocks by changing their lateral aspect ratio. Nanoblocks were patterned on a glass substrate by electron-beam lithography and were 40-400 nm in lateral dimensions and spanned from 1 to 9 in aspect ratio. This allowed us to tune the localized surface plasmon bands from 700 nm to 1.5 µm (longitudinal mode) and from 700 to 550 nm (transverse mode). Unprecedented polarization selectivity of the transverse and longitudinal plasmon bands was achieved via alignment and 3D control of the dimensions of the nanoblocks.

Publication type

Journal article

Source

Optics Letters, Vol. 30, no. 16 (Aug 2005), pp. 2158-2160

Publication year

2005

FOR Code(s)

0205 Optical Physics

Keyword(s)

Aspect ratios;  Electron-beam lithography;  Glass;  Gold;  Nanoblocks;  Nanoengineered gold blocks;  Nanotechnology;  Optical properties;  Plasmon bands;  Polarization;  Surface plasmon resonance

Publisher

Optical Society of America

ISSN

0146-9592

Publisher URL

http://dx.doi.org/10.1364/ol.30.002158

Copyright

Copyright © 2005 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/ol.30.002158. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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