Aluminum plasmonic nanoantennas.


Journal Article

The use of aluminum for plasmonic nanostructures opens up new possibilities, such as access to short-wavelength regions of the spectrum, complementary metal-oxide-semiconductor (CMOS) compatibility, and the possibility of low-cost, sustainable, mass-producible plasmonic materials. Here we examine the properties of individual Al nanorod antennas with cathodoluminescence (CL). This approach allows us to image the local density of optical states (LDOS) of Al nanorod antennas with a spatial resolution less than 20 nm and to identify the radiative modes of these nanostructures across the visible and into the UV spectral range. The results, which agree well with finite difference time domain (FDTD) simulations, lay the groundwork for precise Al plasmonic nanostructure design for a variety of applications.

Full Text

Duke Authors

Cited Authors

  • Knight, MW; Liu, L; Wang, Y; Brown, L; Mukherjee, S; King, NS; Everitt, HO; Nordlander, P; Halas, NJ

Published Date

  • November 2012

Published In

Volume / Issue

  • 12 / 11

Start / End Page

  • 6000 - 6004

PubMed ID

  • 23072330

Pubmed Central ID

  • 23072330

Electronic International Standard Serial Number (EISSN)

  • 1530-6992

International Standard Serial Number (ISSN)

  • 1530-6992

Digital Object Identifier (DOI)

  • 10.1021/nl303517v


  • eng