California Institute of Technology

Lexington Environmental Technologies, Inc.

David A Boyd

Mark Luitzen Brongersma

Nai-Chang Yeh

Leslie Frederick Greengard

Demetri Psaltis

Ares J Rosakis

David Goodwin

David M Owen

Nathan Harrison Noe

James Adleman

A method of forming graphene includes placing a substrate in a processing chamber and introducing a cleaning gas including hydrogen and nitrogen into the processing chamber. The method also includes introducing a carbon source into the processing chamber and initiating a microwave plasma in the processing chamber. The method further includes subjecting the substrate to a flow of the cleaning gas and the carbon source for a predetermined period of time to form the graphene.

Method and system for graphene formation

Graphene structure

A method of identifying a sample includes placing the sample in proximity to a plurality of nanoparticles and irradiating the plurality of nanoparticles with laser radiation. A plasmon resonance process results in heating of the plurality of nanoparticles due to the laser irradiation. The method also includes transferring energy from the plurality of nanoparticles to the sample, obtaining a Raman spectrum associated with sample, and identifying the sample based on the Raman spectrum.

Method and system for raman spectroscopy using plasmon heating

A method for forming graphene includes providing a substrate and subjecting the substrate to a reduced pressure environment. The method also includes providing a carrier gas and a carbon source and exposing at least a portion of the substrate to the carrier gas and the carbon source. The method further includes performing a surface treatment process on the at least a portion of the substrate and converting a portion of the carbon source to graphene disposed on the at least a portion of the substrate.

The present disclosure relates to methods and systems that provide heat, via at least Photon-Electron resonance, also known as excitation, of at least a particle utilized, at least in part, to initiate and/or drive at least one catalytic chemical reaction. In some implementations, the particles are structures or metallic structures, such as nanostructures. The one or more metallic structures are heated at least as a result of interaction of incident electromagnetic radiation, having particular frequencies and/or frequency ranges, with delocalized surface electrons of the one or more particles. This provides a control of catalytic chemical reactions, via spatial and temporal control of generated heat, on the scale of nanometers as well as a method by which catalytic chemical reaction temperatures are provided.

Electromagnetic control of chemical catalysis

A method of microfluidic control via localized heating includes providing a microchannel structure with a base region that is partially filled with a volume of liquid being separated from a gas by a liquid-gas interface region. The base region includes one or more physical structures. The method further includes supplying energy input to a portion of the one or more physical structures within the volume of liquid in a vicinity of the liquid-gas interface region to cause localized heating of the portion of the one or more physical structures. The method also includes transferring heat from the portion of the one or more physical structures to surrounding liquid in the vicinity of the liquid-gas interface region and generating an interphase mass transport at the liquid-gas interface region or across a gas bubble while the volume of liquid and the gas remain to be substantially at ambient temperature.

Plasmon assisted control of optofluidics

Electrical oscillations are supplied to electrodes of a diathermal heating chamber. A liquid is passed through the diathermal heating chamber so as to be heated. The liquid has a minimum level of dissolved solids, which is replenished over time or when the dissolved solids in the liquid fall below a predetermined minimum level. Alternatively, when the level of dissolved solids is excessive, current input or liquid temperature is reduced.

Heater apparatus

A method for forming a film of material using chemical vapor deposition. The method includes providing a substrate comprising a pattern of at least one metallic nanostructure, which is made of a selected material. The method includes determining a plasmon resonant frequency of the selected material of the nanostructure and exciting a portion of the selected material using an electromagnetic source having a predetermined frequency at the plasmon resonant frequency to cause an increase in thermal energy of the selected material. The method includes applying one or more chemical precursors overlying the substrate including the selected material excited at the plasmon resonant frequency and causing selective deposition of a film overlying at least the portion of the selected material.

Method and system for forming a film of material using plasmon assisted chemical reactions

Systems and techniques for integrating an optical coherent gradient sensing (CGS) module and another optical sensing module to simultaneously measure the curvature and another property of a specularly reflective surface.

Growing community of inventors

La Cañada Flintridge, CA, United States of America

David A Boyd