A large-scale framework with built-in vertical nanohole arrays is demonstrated using a unique two-step fabrication method.
Significance and Impact
This approach creates large-scale surface plasmon nanohole arrays. The strong surface plasmon modes in the nanostructures can serve as reusable optical sensors for trace-amount detection and tracking of biomolecules.
- Fabrication was performed at Purdue University. The nanoholes are 6 nm on average, with a packing distance of 8 nm and high epitaxial quality.
- Optical spectroscopy was performed at the Center for Nanoscale Materials (CNM), and numerical simulations were performed using CNM’s Carbon cluster.
Work was performed in part at CNM.
About Argonne’s Center for Nanoscale Materials
The Center for Nanoscale Materials is one of the five DOE Nanoscale Science Research Centers, premier national user facilities for interdisciplinary research at the nanoscale supported by the DOE Office of Science. Together the NSRCs comprise a suite of complementary facilities that provide researchers with state-of-the-art capabilities to fabricate, process, characterize and model nanoscale materials, and constitute the largest infrastructure investment of the National Nanotechnology Initiative. The NSRCs are located at DOE’s Argonne, Brookhaven, Lawrence Berkeley, Oak Ridge, Sandia and Los Alamos National Laboratories. For more information about the DOE NSRCs, please visit https://science.osti.gov/User-Facilities/User-Facilities-at-a-Glance.
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