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  • Publication number: 20200343693
    Abstract: A method for tuning the frequency of THz radiation is provided. The method utilizes an apparatus comprising a spin injector, a tunnel junction coupled to the spin injector, and a ferromagnetic material coupled to the tunnel junction. The ferromagnetic material comprises a Magnon Gain Medium (MGM). The method comprises the step of applying a bias voltage to shift a Fermi level of the spin injector with respect to the Fermi level of the ferromagnetic material to initiate generation of non-equilibrium magnons by injecting minority electrons into the Magnon Gain Medium. The method further comprises the step of tuning a frequency of the generated THz radiation by changing the value of the bias voltage.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Inventors: Boris G. Tankhilevich, Nicholas J. Kirchner, Charles Thomas Thurman
  • Patent number: 10892602
    Abstract: A method for tuning the frequency of THz radiation is provided. The method utilizes an apparatus comprising a spin injector, a tunnel junction coupled to the spin injector, and a ferromagnetic material coupled to the tunnel junction. The ferromagnetic material comprises a Magnon Gain Medium (MGM). The method comprises the step of applying a bias voltage to shift a Fermi level of the spin injector with respect to the Fermi level of the ferromagnetic material to initiate generation of non-equilibrium magnons by injecting minority electrons into the Magnon Gain Medium. The method further comprises the step of tuning a frequency of the generated THz radiation by changing the value of the bias voltage.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 12, 2021
    Assignee: MAGTERA, INC.
    Inventors: Boris G. Tankhilevich, Nicholas J. Kirchner, Charles Thomas Thurman
  • Patent number: 11515687
    Abstract: A method for tuning the frequency of THz radiation is provided. The method utilizes an apparatus comprising a spin injector, a tunnel junction coupled to the spin injector, and a ferromagnetic material coupled to the tunnel junction. The ferromagnetic material comprises a Magnon Gain Medium (MGM). The method comprises the step of applying a bias voltage to shift a Fermi level of the spin injector with respect to the Fermi level of the ferromagnetic material to initiate generation of non-equilibrium magnons by injecting minority electrons into the Magnon Gain Medium. The method further comprises the step of tuning a frequency of the generated THz radiation by changing the value of the bias voltage.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 29, 2022
    Assignee: Magtera, Inc.
    Inventors: Boris G. Tankhilevich, Nicholas J. Kirchner, Charles Thomas Thurman
  • Publication number: 20200388976
    Abstract: An apparatus for generation of tunable terahertz radiation is provided. The apparatus comprises: a plurality of terahertz magnon laser generators, whereas at least one such terahertz magnon laser generator comprises a multilayer column, and a terahertz transparent medium separating at least two such terahertz magnon laser generators. At least one such multilayer column further comprises: a substrate, a bottom electrode coupled with the substrate, a bottom layer coupled with the bottom electrode, a tunnel junction coupled with the bottom layer, a top layer coupled with the tunnel junction, a pinning layer coupled with the spin injector, and a top electrode coupled with the pinning layer.
    Type: Application
    Filed: August 25, 2020
    Publication date: December 10, 2020
    Inventors: Nicholas J. Kirchner, Charles Thomas Thurman, Boris G. Tankhilevich
  • Patent number: 11552438
    Abstract: An apparatus for generation of tunable terahertz radiation is provided. The apparatus comprises: a plurality of terahertz magnon laser generators, whereas at least one such terahertz magnon laser generator comprises a multilayer column, and a terahertz transparent medium separating at least two such terahertz magnon laser generators. At least one such multilayer column further comprises: a substrate, a bottom electrode coupled with the substrate, a bottom layer coupled with the bottom electrode, a tunnel junction coupled with the bottom layer, a top layer coupled with the tunnel junction, a pinning layer coupled with the spin injector, and a top electrode coupled with the pinning layer.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: January 10, 2023
    Assignee: Magtera, Inc.
    Inventors: Nicholas J. Kirchner, Charles Thomas Thurman, Boris G. Tankhilevich
  • Patent number: 10804671
    Abstract: An apparatus for generation of tunable terahertz radiation is provided. The apparatus comprises: a plurality of terahertz magnon laser generators, whereas at least one such terahertz magnon laser generator comprises a multilayer column, and a terahertz transparent medium separating at least two such terahertz magnon laser generators. At least one such multilayer column further comprises: a substrate, a bottom electrode coupled with the substrate, a bottom layer coupled with the bottom electrode, a tunnel junction coupled with the bottom layer, a top layer coupled with the tunnel junction, a pinning layer coupled with the spin injector, and a top electrode coupled with the pinning layer.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: October 13, 2020
    Assignee: Magtera, Inc.
    Inventors: Nicholas J. Kirchner, Boris G. Tankhilevich, Charles Thomas Thurman
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