Patents by Inventor Stefan Schoeche

Stefan Schoeche 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: 20210090857
    Abstract: Methods that include directing an incident beam towards a substrate, the substrate having one or more features formed thereon wherein the incident beam has a wavelength from about 10 ?m to about 10 mm, and the incident beam interacts with the substrate to form a modulated beam; varying one or more characteristics of the incident beam while directed towards the substrate; detecting the modulated beam while varying the one or more characteristics of the incident beam to collect a spectrum; and determining at least one spatial metric of the at least one feature based on the collected spectrum.
    Type: Application
    Filed: August 11, 2020
    Publication date: March 25, 2021
    Inventors: Minna Hovinen, Mathias Schubert, Gerald Finken, Greg Schmitz, Tino Hofmann, Stefan Schöche
  • Patent number: 10914866
    Abstract: Materials comprising metamaterials exhibiting form-induced birefringence and anisotropic optical properties are provided. The disclosed articles comprise structures with critical dimensions which are on the order of or smaller than the wavelength for the gigahertz and terahertz spectral range. Methods of preparing same using stereolithography are disclosed. In a further aspect, the disclosed methods pertain to spectroscopic ellipsometry methods comprising a biaxial (orthorhombic) layer homogenization approach is to analyze the terahertz ellipsometric data obtained at three different sample azimuth orientations. The disclosed articles and methods demonstrate provide an avenue to fabricate metamaterials for the terahertz spectral range and allows tailoring of the polarizability and anisotropy of the host material. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: February 9, 2021
    Assignees: HARRIS CORPORATION GCS, UNIVERSITY OF NORTH CAROLINA CHARLOTTE, J.A. WOOLLAM CO. INC.
    Inventors: Tino Hofmann, Daniel Fullager, Stefan Schoeche, Craig M. Herzinger, Susanne Madeline Lee, Erin Kathleen Sharma
  • Patent number: 10175160
    Abstract: Methodology of characterizing pore size distribution in a porous thin film having a surface, or in a surface region of a porous semi-infinite bulk substrate having a surface, involving applying a mathematical model of a sample based on effective medium approaches, such as the Bruggeman effective medium approach.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: January 8, 2019
    Assignee: J.A. Woollam Co., Inc.
    Inventors: Stefan Schoeche, Jeremy A. Van Derslice, Jeffrey S. Hale, Craig M. Herzinger
  • Patent number: 10101265
    Abstract: Ellipsometers and polarimeters or the like to investigate analyte containing fluids applied to a substrate-stage having a multiplicity of nano-structures that project non-normal to a surface thereof, including dynamics of interaction therewith, to the end of evaluating and presenting at least partial Jones or Mueller Matricies corresponding to a multiplicity of locations over an imaged area.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: October 16, 2018
    Inventors: Mathias M. Schubert, Tino Hofmann, David S. Hage, Erika Pfaunmiller, Craig M. Herzinger, John A. Woollam, Stefan Schoeche
  • Patent number: 10073120
    Abstract: Optical Hall Effect (OHE) method for evaluating such as free charge carrier effective mass, concentration, mobility and free charge carrier type in a sample utilizing a permanent magnet at room temperature.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: September 11, 2018
    Assignees: BOARD OF REGENTS FOR THE UNIVERSITY OF NEBRASKA, J.A. WOOLLAM CO., INC.
    Inventors: Tino Hofmann, Mathias M. Schubert, Stefan Schoeche, Philipp Kuehne, Craig M. Herzinger, John A. Woollam, Gregory K. Pribil, Thomas E. Tiwald, Sean R. Knight
  • Patent number: 9976902
    Abstract: Methodology of characterizing pore size and distribution in a porous thin film having a surface, or in a surface region of a porous semi-infinite bulk substrate having a surface, involving applying a mathematical model of a sample based on a Bruggerman effective medium.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 22, 2018
    Assignee: J.A. WOOLAM CO., INC.
    Inventors: Stefan Schoeche, Jeremy A. Van Derslice, Jeffrey S. Hale, Craig M. Herzinger
  • Patent number: 9851294
    Abstract: System Stage, and Optical Hall Effect (OHE) system method for evaluating such as free charge carrier effective mass, concentration, mobility and free charge carrier type in a sample utilizing a permanent magnet at room temperature.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: December 26, 2017
    Assignees: J.A. WOOLLAM CO., INC., UNIVERSITY OF NEBRASKA BOARD OF REGENTS
    Inventors: Tino Hofmann, Mathias M. Schubert, Stefan Schoeche, Sean Knight, Craig M. Herzinger, John A. Woollam, Greg K. Pribil, Thomas E. Tiwald
  • Publication number: 20160041089
    Abstract: Methods that include directing an incident beam towards a substrate, the substrate having one or more features formed thereon wherein the incident beam has a wavelength from about 10 ?m to about 10 mm, and the incident beam interacts with the substrate to form a modulated beam; varying one or more characteristics of the incident beam while directed towards the substrate; detecting the modulated beam while varying the one or more characteristics of the incident beam to collect a spectrum; and determining at least one spatial metric of the at least one feature based on the collected spectrum.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 11, 2016
    Inventors: Minna Hovinen, Mathias Schubert, Gerald Finken, Greg Schmitz, Tino Hofmann, Stefan Schöche