Patent ID: 8786852
Filing Date: 2014-07-22
Classification: B81C,B82Y,G01N

Abstract:
1. A method of measuring a local electric field intensity with nanometer resolution for an array structure in surface enhanced Raman scattering (SERS), the method comprising: providing a structure comprising: a planar substrate, an array of nanopillars on the planar substrate, the array of nanopillars substantially perpendicular to the planar substrate and having a substantially cylindrical shape, a metal drop having a substantially spherical shape on each nanopillar of the array of nanopillars, and a second metal covering a surface of the planar substrate; placing a plurality of semiconductor quantum dots or artificial fluorophore molecules in a plurality of hot spots in the structure; and measuring a photoluminescence and/or a fluorescence spectroscopy and calculating the expected local electric field intensity based on quantum-confined Stark effect, thus measuring the local electric field intensity with nanometer resolution for the structure.