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The Royal Institution for the Advancement of Learning / Mcgill University

Mcgill University

Andrew Kirk

Vamsy Chodavarapu

Mark Trifiro

Miltiadis Paliouras

Philip Roche

Lenore Beitel

Mohamed Najih

Joachim Thiemann

Eric Bisaillon

A heating mechanism for use in DNA applications such as DNA amplification, extraction and sterilization is provided. Nanoparticles having photo-thermal properties are put in contact with a reaction mixture and irradiated with an activation light beam to activate these photo-thermal properties, thereby releasing heat. Nanoparticles of several types may be used. Use of the same nanoparticles or of different one to monitor the reaction using a different light beam is also presented.

Heating mechanism for DNA amplification, extraction or sterilization using photo-thermal nanoparticles

An integrated etched multilayer grating-based wavelength multiplexer/demultiplexer is disclosed wherein an etched multilayer grating structure is monolithically integrated within the optical waveguide stack of the multiplexer/demultiplexer to reflectively diffract an input optical beam. The multilayer grating structure is generally comprised of a series of etched diffractive elements and an etched multilayer reflector, the combined optical response of which providing the desired multiplexing/demultiplexing effect. The etched structures are generally comprised of shallow etch structures in a top surface of the multiplexer/demultiplexer waveguide stack. Monolithically integrated input and output ridge waveguides may also be provided, optionally fabricated in a same etching step as the etched multilayer grating.

Integrated etched multilayer grating based wavelength demultiplexer

The present invention provides a wavelength multiplexer/demultiplexer comprising a plurality of regions of optically permissive material. The plurality of regions are disposed adjacent one another in a side by side relationship in order to define a stratified body. The materials in adjacent regions have differing indexes of refraction. The stratified body has a first surface and a second surface that are positioned in a non-parallel relationship with respect to one another. The first surface is a light-receiving surface, and the second surface is a light-exiting surface.

Wavelength multiplexer/demultiplexer comprising an optically dispersive stratified body

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Outremont, Canada

Andrew Kirk