Patents by Inventor Jurg Leuthold

Jurg Leuthold 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).

  • Publication number: 20200408677
    Abstract: A terahertz device includes a first waveguide, which is a plasmonic waveguide, having a first core with a nonlinear material, such as a ferroelectric material, and having a cladding with a first cladding portion including, at a first interface with the first core, a first cladding material that is an electrically conductive material. The terahertz device can include an antenna having a first and a second arm (for receiving or for emitting or for both, receiving and emitting electromagnetic waves in the terahertz range); a first and a second electrode arranged close to the first waveguide.
    Type: Application
    Filed: March 20, 2018
    Publication date: December 31, 2020
    Inventors: Yannick Salamin, Ping Ma, Ueli Koch, Jürg Leuthold
  • Patent number: 10571724
    Abstract: An electro-optic element includes a first waveguide, which is a plasmonic waveguide, including a first core having a ferroelectric material and a cladding having a first cladding portion. The first cladding portion includes, at a first interface with the ferroelectric material, a first cladding material. The electro-optic element includes a first and a second electrode for producing an electric field in the ferroelectric material when a voltage is applied between the first and second electrodes, for modulating a real part of a refractive index of the ferroelectric material. The element includes, in addition, a crystalline substrate on which the ferroelectric material is epitaxially grown with zero or one or more intermediate layers present between the substrate and the ferroelectric material. The element may have a second waveguide, which is a photonic waveguide, including for enabling evanescent coupling between the first and second waveguides.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: February 25, 2020
    Assignee: ETH ZÜRICH
    Inventors: Ping Ma, Jürg Leuthold
  • Patent number: 10444076
    Abstract: An infrared device comprises a substrate (1), and arranged on or in the substrate (1) a configuration (3) for one of selectively emitting and selectively absorbing infrared radiation of a band, the configuration (3) comprising a pattern made from an electrically conducting material on a first level (L1), an electrically conducting film (33) on a second level (L2), and a dielectric layer (24) between the pattern and the film (33). One or more of a heater (4) for heating the configuration (3), and a thermal sensor (5) arranged for sensing the selective infrared radiation of the band absorbed by the configuration (3) on or in the substrate.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: October 15, 2019
    Assignee: Sensirion AG
    Inventors: Martin Winger, Marc Von Waldkirch, Matthias Streiff, Alexander Lochbaum, Jürg Leuthold
  • Patent number: 10276734
    Abstract: The present invention relates to plasmonic components, more particularly plasmonic waveguides, and to plasmonic photodetectors that can be used in the field of microoptics and nanooptics, more particularly in highly integrated optical communications systems in the infrared range (IR range) as well as in power engineering, e.g. photovoltaics in the visible range. The present invention also specifies a method for producing a plasmonic component, more particularly for photodetection on the basis of internal photoemission.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: April 30, 2019
    Assignee: Karlsruher Institut Für Technologie
    Inventors: Sascha Mühlbrandt, Jürg Leuthold, Manfred Kohl
  • Publication number: 20180356290
    Abstract: An infrared device comprises a substrate (1), and arranged on or in the substrate (1) a configuration (3) for one of selectively emitting and selectively absorbing infrared radiation of a band, the configuration (3) comprising a pattern made from an electrically conducting material on a first level (L1), an electrically conducting film (33) on a second level (L2), and a dielectric layer (24) between the pattern and the film (33). One or more of a heater (4) for heating the configuration (3), and a thermal sensor (5) arranged for sensing the selective infrared radiation of the band absorbed by the configuration (3) on or in the substrate.
    Type: Application
    Filed: November 26, 2015
    Publication date: December 13, 2018
    Inventors: Martin WINGER, Marc VON WALDKIRCH, Matthias STREIFF, Alexander LOCHBAUM, Jürg LEUTHOLD
  • Publication number: 20180081204
    Abstract: An electro-optic element includes a first waveguide, which is a plasmonic waveguide, including a first core having a ferroelectric material and a cladding having a first cladding portion. The first cladding portion includes, at a first interface with the ferroelectric material, a first cladding material. The electro-optic element includes a first and a second electrode for producing an electric field in the ferroelectric material when a voltage is applied between the first and second electrodes, for modulating a real part of a refractive index of the ferroelectric material. The element includes, in addition, a crystalline substrate on which the ferroelectric material is epitaxially grown with zero or one or more intermediate layers present between the substrate and the ferroelectric material. The element may have a second waveguide, which is a photonic waveguide, including for enabling evanescent coupling between the first and second waveguides.
    Type: Application
    Filed: March 30, 2016
    Publication date: March 22, 2018
    Inventors: Ping Ma, Jürg Leuthold
  • Publication number: 20170194514
    Abstract: The present invention relates to plasmonic components, more particularly plasmonic waveguides, and to plasmonic photodetectors that can be used in the field of microoptics and nanooptics, more particularly in highly integrated optical communications systems in the infrared range (IR range) as well as in power engineering, e.g. photovoltaics in the visible range. The present invention also specifies a method for producing a plasmonic component, more particularly for photodetection on the basis of internal photoemission.
    Type: Application
    Filed: May 27, 2015
    Publication date: July 6, 2017
    Inventors: Sascha MÜHLBRANDT, Jurg LEUTHOLD, Manfred KOHL
  • Patent number: 8081851
    Abstract: A high-index contrast waveguide component is presented, which is based on the fast changing of the transmission properties of an optical waveguide by applying electric voltages, or by embossing electric currents. The waveguide consists of a high-refractive waveguide core surrounded by a low-refractive surrounding material, which at least area by area has electro-optical properties. By applying a voltage to completely or partially optically transparent electrodes, an electric field is generated having a strong overlap with the optical mode, being in interaction with it, and therefore changing the transmission properties of the waveguide. The transparent electrodes or supply line areas are laminar, connected at low resistance with conductor paths of high conductivity by means of structures continually repeated along the propagation direction. Thus, it is possible for example to very fast load the capacity being effective between the electrodes, and to thus achieve a high electric band width.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: December 20, 2011
    Assignee: Karlsruher Institut fur Technologie
    Inventors: Christian Koos, Jurg Leuthold, Wolfgang Freude, Jan Michael Brosi
  • Publication number: 20100021124
    Abstract: A high-index contrast waveguide component is presented, which is based on the fast changing of the transmission properties of an optical waveguide by applying electric voltages, or by embossing electric currents. The waveguide consists of a high-refractive waveguide core surrounded by a low-refractive surrounding material, which at least area by area has electro-optical properties. By applying a voltage to completely or partially optically transparent electrodes, an electric field is generated having a strong overlap with the optical mode, being in interaction with it, and therefore changing the transmission properties of the waveguide. The transparent electrodes or supply line areas are laminar, connected at low resistance with conductor paths of high conductivity by means of structures continually repeated along the propagation direction. Thus, it is possible for example to very fast load the capacity being effective between the electrodes, and to thus achieve a high electric band width.
    Type: Application
    Filed: September 14, 2007
    Publication date: January 28, 2010
    Inventors: Christian Koos, Jurg Leuthold, Wolfgang Freude, Jan Michael Brosi
  • Publication number: 20070036542
    Abstract: The invention relates to a method for recognizing the integrity of an optical access line, wherein an optical measuring signal is sent from a measuring unit, and wherein the reflected echoes are searched through for an echo that is characteristic for a reflector applied at the end of the access line. The invention further relates to an optical system, a tree-shaped access network, a reflector, and an optical transmit and receive unit.
    Type: Application
    Filed: July 24, 2006
    Publication date: February 15, 2007
    Inventors: Thomas Pfeiffer, Wolfgang Freude, Jurg Leuthold
  • Patent number: 6437905
    Abstract: A wavelength converter with a monolithically integrated delay loop in a delayed interference configuration that needs only one SOA, only one in and one output fiber. Unlike prior-art hybrid wavelength converters, our inventive device has a monolithically integrated delay loop utilizing an asymmetric splitting ratio.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: August 20, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: Charles H Joyner, Jurg Leuthold