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BPN580: Nanovolcano Array For Biomolecular Analysis

Project ID BPN580
Website
Start Date Tue 2010-Aug-10 22:03:16
Last Updated Thu 2011-Aug-18 12:44:36
Abstract Optical transmission through a very small nanoaperture decorated with concentric gratings on the apex of a metallic micropyramid can guide the beam path after transmission. A micro-pyramidal probe with periodic grooves acts as an antenna in terms of beam radiation as well as a lens in terms of beam focus. We optically resolve that the transmitted beam is splitted to the corresponding pyramid surfaces guided by gratings. By using the pseudo-Kretschmann configuration and grating surface plasmon polariton coupling, we can explain that SPPs propagating along a pyramidal surface modulated with a grating couple to light and thus radiate. The work may lead to more sensitive probes of the optical properties of nanostructures.
Status Continuing
Funding Source
IAB Research Area NanoPlasmonics, Microphotonics & Imaging
Researcher(s) Seung-min Park, Soongweon Hong
Advisor(s) Luke P. Lee
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