Patent ID: 9366814
Filing Date: 2016-06-14
CPC Classification: C23F,C25D,G01N,G02B

Claim Text:
1. A method for producing waveguides having apertures that extend into a transparent substrate that are selectively functionalized on their bases comprising: providing an array of zero mode waveguides comprising an opaque layer on top of a silica-based transparent substrate layer wherein the zero mode waveguides comprise nanoscale apertures extending through the opaque layer and extending into the transparent layer, each zero mode waveguide having walls and a base; coating the array of zero mode waveguides such that the walls and the bases are coated with a non-reflective layer; etching back the non-reflective layer to expose the transparent substrate at the bases of the zero mode waveguides, thereby producing a non-reflective layer selectively on the walls of the zero mode waveguides and on the walls of the apertures extending into the transparent substrate layer, and treating the array with an agent that selectively functionalizes the aperture bases comprising exposed silica-based transparent substrate layer to produce an array of zero mode waveguides having apertures selectively functionalized on their bases.