Arrays of nano structures for surface-enhanced Raman scattering
AssigneeOpto Trace Technologies, Inc.
InventorsHong Wang, Xindi Wu, Xun Guo
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Abstract
Disclosed herein is a SERS sensing surface device comprising a substrate supporting a plurality of nano structures, an exposed sensing surface upon the nano structures, wherein said surface includes at least one active SERS nano surface and at least one inactive SERS nano surface established in proximity to the active SERS nano. Also disclosed are methods for forming the array device, systems based on the array device, as well as methods for performing SERS with the array device.
Claims53
A sensing device for surface-enhanced Raman spectroscopy (SERS), comprising:
- a substrate;
- a plurality of nano structures on the substrate, wherein each of the nano structures is a three dimensional object having at least one dimension smaller than 300 nanometer, and at least one of the nano structures comprises an active SERS nano surface and an inactive SERS nano surface in proximity to the active nano SERS surface;
- and
- an adsorption layer on the active SERS nano surface or the inactive SERS nano surface.
A chemical detection system, comprising:
- a sensing device comprising:
- a substrate;
- a plurality of nano structures on the substrate, wherein each of the nano structures is a three dimensional object having at least one dimension smaller than 300 nanometer, and at least one of the nano structures comprises an active SERS nano surface and an inactive SERS nano surface in proximity to the active nano SERS surface, wherein the active SERS nano surface or the inactive SERS nano surface is configured to adsorb molecules of a chemical substance;
- and
- an adsorption layer on the active SERS nano surface or the inactive SERS nano surface;
- a laser configured to emit a laser beam to irradiate the plurality of nano structures;
- and
- a spectrometer configured to detect a composition of the chemical substance in response to a light scattered by the nano structures.
A sensing device for surface-enhanced Raman spectroscopy (SERS), comprising:
- a substrate;
- and
- a plurality of nano structures on the substrate, wherein each of the nano structures is a three dimensional object having at least one dimension smaller than 300 nanometer, and at least one of the nano structures comprises an active SERS nano surface and an inactive SERS nano surface in proximity to the active nano SERS surface, wherein the nano structures comprise recesses in a surface of the substrate.
A sensing device for surface-enhanced Raman spectroscopy (SERS), comprising:
- a substrate;
- and
- a plurality of nano structures on the substrate, wherein each of the nano structures is a three dimensional object having at least one dimension smaller than 300 nanometer, and at least one of the nano structures comprises an active SERS nano surface and an inactive SERS nano surface in proximity to the active nano SERS surface, wherein the nano structures are distributed in two or more arrays, and the nano structures in the two or more different arrays have different shapes or dimensions.
A sensing device for surface-enhanced Raman spectroscopy (SERS), comprising:
- a substrate;
- a plurality of nano structures on the substrate, wherein each of the nano structures is a three dimensional object having at least one dimension smaller than 300 nanometer, and at least one of the nano structures comprises an active SERS nano surface and an inactive SERS nano surface in proximity to the active nano SERS surface;
- and
- an adhesion layer between the nano structure and the substrate.
Dependencies are inferred from the claim text.