Aluminum Plasmonic Nanoantennas
Abstract
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 16, 2012
- Accession Number
- ADA600116
Entities
People
- Henry O. Everitt
- Lifei Liu
- Lisa Brown
- Mark W. Knight
- Naomi J. Halas
- Nicholas S. King
- Peter Nordlander
- Shaunak Mukherjee
- Yumin Wang
Organizations
- Rice University