HARMONIC GRATINGS UTILIZING EVACUATED PERIODIC STRUCTURES

WIPO Patent Application WO/2023/250390

A3

Disclosed herein are harmonic gratings formed by evacuated periodic structures. In some examples, the harmonic gratings may be utilized as biosensors. Various methods of forming the biosensors include: providing a bottom substrate; coating a mixture of an inert material and a monomer onto the bottom substrate; providing a first top substrate to position the mixture between the bottom substrate and the first top substrate; applying holographic exposure to the mixture to form an intermediate periodic structure comprising polymer rich regions separated by inert material rich regions; removing the first top substrate; evacuating the inert material from the inert material rich regions leaving an evacuated periodic structure where the inert material rich regions have been replaced with air and a polymer matrix; and contacting the evacuated periodic structure with a biomaterial which interacts with the polymer matrix.

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GRANT ALASTAIR JOHN (US)
BERGSTROM JR RICHARD E (US)
POPOVICH MILAN MOMCILO (GB)

PCT/US2023/068830

April 11, 2024

June 21, 2023

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DIGILENS INC (US)

G02B5/18; C08F2/46; G02B6/34

HSU, Kendrick (US)

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