Patents by Inventor Alec Reader

Alec Reader 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).

  • Electroluminescent device for the production of ultra-violet light
    Publication number: 20110204483
    Abstract: The invention provides a method of producing an opto-electronic device wherein a layer of lattice matched material is grown on a substrate, the lattice matched material being a cubic zincblend material and the substrate being a cubic diamond or zincblend material, to form a coated substrate.
    Type: Application
    Filed: June 27, 2005
    Publication date: August 25, 2011
    Inventors: Patrick McNally, David Cameron, Lisa O'Reilly, Gomathi Natarajan, Olabanji Francis Lucas, Alec Reader
  • Method and apparatus for analysis of semiconductor materials using photoacoustic spectroscopy techniques
    Patent number: 7586611
    Abstract: A photoacoustic spectrometer apparatus adapted to enable an observation and characterisation of non-radiative sub bandgap defects in narrow and large bandgap materials using photoacoustic spectroscopy techniques, the apparatus providing for an irradiation of a sample material provided within a photoacoustic cell and the subsequent detection and processing of an acoustic signal emitted by the sample, the apparatus comprising a light source having a polychromatic output substantially in the photonic energy range 0.5 eV to 6.2 eV, focusing means adapted to couple the output from the light source onto the sample material, the focusing means providing for an alignment and focusing of the light emitted from the light source so as to provide a substantially parallel incident light onto the sample material, and means for detecting and acquiring the acoustic signal emitted by the sample in response to the irradiation.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: September 8, 2009
    Assignee: Dublin City University
    Inventors: Donnacha Lowney, Patrick McNally, Alec Reader
  • Method and apparatus for analysis of semiconductor materials using photoacoustic spectroscopy techniques
    Publication number: 20060256339
    Abstract: A photoacoustic spectrometer apparatus adapted to enable an observation and characterisation of non-radiative sub bandgap defects in narrow and large bandgap materials using photoacoustic spectroscopy techniques, the apparatus providing for an irradiation of a sample material provided within a photoacoustic cell and the subsequent detection and processing of an acoustic signal emitted by the sample, the apparatus comprising a light source having a polychromatic output substantially in the photonic energy range 0.5 eV to 6.2 eV, focusing means adapted to couple the output from the light source onto the sample material, the focusing means providing for an alignment and focusing of the light emitted from the light source so as to provide a substantially parallel incident light onto the sample material, and means for detecting and acquiring the acoustic signal emitted by the sample in response to the irradiation.
    Type: Application
    Filed: May 21, 2004
    Publication date: November 16, 2006
    Inventors: Donnacha Lowney, Patrick McNally, Alec Reader