Patent ID: 9080980
Filing Date: 2015-07-14
Classification: G01N

Abstract:
1. A surface enhanced Raman spectroscopy (SERS) apparatus comprising: a nanorod having a tip at a free end opposite to an end of the nanorod that is supported by a substrate; an indentation in a surface of the substrate, the indentation having a tapered profile and supporting the nanorod at a bottom of the indentation, the free end of the nanorod extending away from the indentation bottom; and a Raman-active material at a surface of both of the nanorod and the indentation, a combination of a shape and the Raman-active material surface of the indentation to redirect and concentrate an incident electromagnetic field, the electromagnetic field being incident from a direction toward which the nanorod extends, wherein the redirected and concentrated incident electromagnetic field is to facilitate one or both of production and detection of a Raman scattering signal emitted by an analyte in a vicinity of the nanorod and indentation.