Patents by Inventor Alastair Douglas STACEY

Alastair Douglas STACEY has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Nitrogen containing single crystal diamond materials optimized for magnetometry applications
    Patent number: 11396715
    Abstract: A single crystal diamond material comprising: neutral nitrogen-vacancy defects (NV0); negatively charged nitrogen-vacancy defects (NV?); and single substitutional nitrogen defects (Ns) which transfer their charge to the neutral nitrogen-vacancy defects (NV0) to convert them into the negatively charged nitrogen-vacancy defects (NV), characterized in that the single crystal diamond material has a magnetometry figure of merit (FOM) of at least 2, wherein the magnetometry figure of merit is defined by (I) where R is a ratio of concentrations of negatively charged nitrogen-vacancy defects to neutral nitrogen-vacancy defects ([NV?]/[NV0]), [NV?] is the concentration of negatively charged nitrogen-vacancy defects measured in parts-per-million (ppm) atoms of the single crystal diamond material, [NV0] is a concentration of neutral nitrogen-vacancy defects measured in parts-per-million (ppm) atoms of the single crystal diamond material, and T2? is a decoherence time of the NV? defects, where T2? is T2* for DC magnetome
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: July 26, 2022
    Assignees: Element Six Technologies Limited, Element Six Technologies US Corporation
    Inventors: Wilbur Lew, Gregory Bruce, Andrew Mark Edmonds, Matthew Lee Markham, Alastair Douglas Stacey, Harpreet Kaur Dhillon
  • A METHOD OF FORMING A DIAMOND COATING ON A CARBON MATERIAL
    Publication number: 20220127720
    Abstract: Disclosed is a method of forming a conductive diamond layer on a surface of a carbon fibre substrate that is used as a component of an electrode for neural stimulation and/or electrochemical sensing. The method comprises functionalising at least a portion of the surface with a functionalising agent to facilitate coating the surface with the conductive diamond layer. The method also comprises providing a diamond precursor and depositing the diamond precursor over the functionalising agent to form the conductive diamond layer. The disclosure also relates to an electrode that is used as a component of an electrode for neural stimulation and/or electrochemical sensing.
    Type: Application
    Filed: February 11, 2020
    Publication date: April 28, 2022
    Inventors: Maryam Alsadat Hejazi, David John Garrett, Alastair Douglas Stacey, Nicholas Vincent Apollo, Kumaravelu Ganesan, Matias Ismael Maturana, Steven Prawer, Wei Tong, Melanie Elisabeth Maria Stamp, Michael Ibbotson
  • NITROGEN CONTAINING SINGLE CRYSTAL DIAMOND MATERIALS OPTIMIZED FOR MAGNETOMETRY APPLICATIONS
    Publication number: 20210054526
    Abstract: A single crystal diamond material comprising: neutral nitrogen-vacancy defects (NV0); negatively charged nitrogen-vacancy defects (NV?); and single substitutional nitrogen defects (Ns) which transfer their charge to the neutral nitrogen-vacancy defects (NV0) to convert them into the negatively charged nitrogen-vacancy defects (NV), characterized in that the single crystal diamond material has a magnetometry figure of merit (FOM) of at least 2, wherein the magnetometry figure of merit is defined by (I) where R is a ratio of concentrations of negatively charged nitrogen-vacancy defects to neutral nitrogen-vacancy defects ([NV?]/[NV0]), [NV?] is the concentration of negatively charged nitrogen-vacancy defects measured in parts-per-million (ppm) atoms of the single crystal diamond material, [NV0] is a concentration of neutral nitrogen-vacancy defects measured in parts-per-million (ppm) atoms of the single crystal diamond material, and T2? is a decoherence time of the NV? defects, where T2? is T2* for DC magnetome
    Type: Application
    Filed: December 6, 2016
    Publication date: February 25, 2021
    Inventors: Wilbur LEW, Gregory BRUCE, Andrew Mark EDMONDS, Matthew Lee MARKHAM, Alastair Douglas STACEY, Harpreet Kaur DHILLON