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Fabrication of Highly-Flexible Near-Infrared Metamaterials

Summary

This can be used for near-Infrared sensors, detectors, signal generator applications. It introduces a new method and apparatus of fabrication of a multilayer flexible metamaterial that can be fabricated using flip chip transfer (FCT) technique. This technique is different from other similar techniques such as metal lift off process, which fabricates the nanostructures directly onto the flexible substrate or nanometer printing technique. It is a solution-free FCT technique using double-side optical adhesive as the intermediate transfer layer and a tri-layer metamaterial nanostructures on a rigid substrate can be transferred onto adhesive first. A flexible metamaterial can also be fabricated independent of the original substrate used.

Technology Benefits

Flexible form and substrate, solution-free process

Technology Application

Near-Infrared sensors, detectors, signal generator for the applications such as night vision, building inspection, thermography, non-destructive tests and chemical imaging

Detailed Technology Description

This novel method and apparatus of fabrication of a multilayer flexible metamaterial can be fabricated using flip chip transfer (FCT) technique. This technique is different from other similar techniques such as metal lift off process, which fabricates the nanostructures directly onto the flexible substrate or nanometer printing technique. It is a solution-free FCT technique using double-side optical adhesive as the intermediate transfer layer and a tri-layer metamaterial nanostructures on a rigid substrate can be transferred onto adhesive first. Also, both fabrication method and apparatus that allow the transfer of the metamaterial from a rigid substrate such as glass, quartz and metals onto a flexible substrate such as plastic or polymer film. Thus, a flexible metamaterial can be fabricated independent of the original substrate used.

Supplementary Information

Inventor: Cheah, Kok Wai | Li, Guixin
Priority Number: US20130160936A1
IPC Current: G02F000101
US Class: 156230 | 118723FE | 156349 | 427160
Assignee Applicant: Hong Kong Baptist University
Title: Fabrication of Highly Flexible Near-infrared Metamaterials
Usefulness: Fabrication of Highly Flexible Near-infrared Metamaterials
Summary: The metamaterial is useful for preparing tunable receiver device being one or more of electromagnetic wave sensors, electromagnetic wave absorbers, and electromagnetic wave receivers; and for preparing tunable transmitter device being one or more of electromagnetic wave emitters, electromagnetic wave transmitters, and electromagnetic wave reflectors (all claimed).
Novelty: Highly flexible near-infrared metamaterial useful for preparing tunable receiver device, and tunable transmitter device comprises a multi-layer comprising at least a conductor layer, and a dielectric layer, and a flexible substrate

Application Date

2012.12.23

Application No.

US 13/726,127

Others

Published

ID No.

B82/CK/High/US01

Country/Region

Hong Kong