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Title

Design of lumpy metallic nanoparticles for broadband and wide-angle light scattering

Author(s)

Stokes, Nicholas;  Jia, Baohua;  Gu, Min

Abstract

Broadband and wide-angle light scattering media are highly desirable in photonic applications. In this paper, we theoretically investigate the light scattering properties of lumpy nanoparticles of silver, aluminum, and copper compared to those of smooth nanospheres with the same volume. The lumpy nanoparticles are found to provide broadband scattering enhancement over the smooth nanoparticles in a variety of dielectric environments. A maximum 18 enhancement in angular scattering for Al lumpy particles was found. More importantly, near-field scattering intensity mapping confirms that the enhanced scattering is achieved in all directions, making them more attractive in diverse photonic applications.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics

Source

Applied Physics Letters, Vol. 101, no. 14 (Oct 2012), article no. 141112

Publication year

2012

FOR Code(s)

02 Physical Sciences;  09 Engineering

Keyword(s)

Broadband scattering;  Lumpy nanoparticles;  Photonic applications;  Wide-angle light scattering

Publisher

American Institute of Physics

ISSN

0003-6951

Publisher URL

http://dx.doi.org/10.1063/1.4757135

Copyright

Copyright © 2012 American Institute of Physics. The published version is reproduced with the kind permission of the publisher.

Additional information

The authors acknowledge support from the Victorian Government to establish the Victoria-Suntech Advanced Solar Facility (VSASF) under the Victoria Science Agenda (VSA) scheme, and the Victorian Governmentt through the Victorian Fellowship.

Full text

Peer reviewed