Patents by Inventor Ashwin C. Atre

Ashwin C. Atre 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).

  • Nanoscale optical tomography with cathodoluminescence spectroscopy
    Patent number: 10551330
    Abstract: In one aspect, a cathodoluminescence (CL) spectroscopic tomography device includes a sample stage to support a sample. An electron beam source scans an electron beam over the sample to yield light emission by the sample. A reflective element directs the light emission by the sample to a light detector. A controller controls operation of the sample stage, the electron beam source, and the light detector. In one aspect, a CL spectroscopic tomography device includes an electron beam source which directs an electron beam at an object to yield an emission by the object. A detector detects the emission. A controller receives information from the detector related to the detected emission. The controller derives a two-dimensional (2D) CL map from the information related to the detected emission, and derives a three-dimensional (3D) CL tomogram from the 2D CL map.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: February 4, 2020
    Assignees: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY, STICHTING VOOR FUNDAMENTEEL ONDERZOEK DER MATERIE
    Inventors: Ashwin C. Atre, Jennifer A. Dionne, Benjamin Brenny, Toon Coenen, Albert Polman
  • NANOSCALE OPTICAL TOMOGRAPHY WITH CATHODOLUMINESCENCE SPECTROSCOPY
    Publication number: 20170052130
    Abstract: In one aspect, a cathodoluminescence (CL) spectroscopic tomography device includes a sample stage to support a sample. An electron beam source scans an electron beam over the sample to yield light emission by the sample. A reflective element directs the light emission by the sample to a light detector. A controller controls operation of the sample stage, the electron beam source, and the light detector. In one aspect, stage a CL spectroscopic tomography device includes an electron beam source which directs an electron beam at an object to yield an emission by the object. A detector detects the emission. A controller receives information from the detector related to the detected emission. The controller derives a two-dimensional (2D) CL map from the information related to the detected emission, and derives a three-dimensional (3D) CL tomogram from the 2D CL map.
    Type: Application
    Filed: April 22, 2015
    Publication date: February 23, 2017
    Inventors: Ashwin C. Atre, Jennifer A. Dionne, Benjamin Brenny, Toon Coenen, Albert Polman