Optical sensor and method for manufacturing the same

Details Optical sensor and method for manufacturing the same Optical sensor and method for manufacturing the same

2011-06-07

2011-06-07

Nguyen, Sang (Department: 2886)

Optics: measuring and testing

By dispersed light spectroscopy

With raman type light scattering

C435S287600, C029S460000

Reexamination Certificate

active

07956995

ABSTRACT:
An optical sensor according to the present invention significantly enhances the sensitivity of an optical sensor for molecular measurement using light such as Surface Enhanced Raman Scattering and Plasmon Resonance Spectroscopy utilizing the local plasmon's excitation of a noble metal. By using a transparent substance deposition step for forming a large number of anisotropic nano-columns having a predetermined aspect ratio, with their longitudinal direction and transverse direction aligned, by depositing a transparent substance onto a substrate from an oblique position while periodically inverting the position and a noble metal deposition step for depositing a noble metal onto surfaces of the formed anisotropic nano-columns, it is possible to manufacture an optical sensor with very high sensitivity at very low cost.

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