Patents by Inventor Menelaos K. Poutous

Menelaos K. Poutous 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).

  • Patent number: 11231525
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a seed layer of material deposited on the surface of the optical element. The seed layer is removed during or after the etching, and serves to control etching time as well as the transmission region of the optical element having ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: January 25, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Lynda E. Busse, Jesse A. Frantz, Leslie Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Menelaos K. Poutous
  • Publication number: 20220004080
    Abstract: A non-linear optical crystal, such as a Lithium triborate (LiB3O5 or LBO) crystal, includes a first nanostructured optical surface including distributed pillars and gaps having random heights and cross sections to provide anti-reflection control and scatter control of first light incident on the first structured optical surface. The LBO crystal has an anti-reflective random structured optical surface formed by selective substitution of the surface species Boron-pentoxide (B3O5?) by Lithium Fluoride (LiF), resulting in a depletion layer with low reflectivity and low reflective scatter in the visible, ultraviolet (UV), and near infrared (IR) bands. The LBO crystal with the anti-reflective structured optical surface may be a monolithic structure and thus need not include a coating of an anti-reflective (AR) material, although the LBO crystal may include an optical surface coated by an AR material. The pillars and gaps may be randomly distributed or periodically distributed on the optical surface.
    Type: Application
    Filed: June 10, 2021
    Publication date: January 6, 2022
    Inventors: Menelaos K. Poutous, Hui Cai, Praneeth Gadamsetti
  • Patent number: 11035984
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a three-dimensional film layer applied to the surface of the optical element. The methods beneficially permit materials that do not exhibit local variation in physical and chemical properties to be provided with ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 15, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. Frantz, Lynda E. Busse, L. Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Menelaos K. Poutous
  • Patent number: 10254169
    Abstract: The present invention provides an optical detector device, including: a metal absorber layer; and a dielectric cover layer coupled to the metal absorber layer, wherein the dielectric cover layer includes one or more antireflective structured surfaces. The optical detector device further includes one or more of a passive substrate layer and an active thermoelectric element layer coupled to the metal absorber layer opposite the dielectric cover layer. The one or more antireflective structured surfaces each utilize a random pattern.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: April 9, 2019
    Assignees: The Government of the United States of America, as represented by the Secretary of the Navy, The University of North Carolina at Charlotte
    Inventors: Menelaos K. Poutous, Ishwar D. Aggarwal, Jasbinder S. Sanghera, Lynda E. Busse, Brandon L. Shaw
  • Publication number: 20180238739
    Abstract: The present invention provides an optical detector device, including: a metal absorber layer; and a dielectric cover layer coupled to the metal absorber layer, wherein the dielectric cover layer includes one or more antireflective structured surfaces. The optical detector device further includes one or more of a passive substrate layer and an active thermoelectric element layer coupled to the metal absorber layer opposite the dielectric cover layer. The one or more antireflective structured surfaces each utilize a random pattern.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 23, 2018
    Inventors: Menelaos K. POUTOUS, Ishwar D. AGGARWAL, Jasbinder S. SANGHERA, Lynda E. BUSSE, Brandon L. SHAW
  • Publication number: 20180172882
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a three-dimensional film layer applied to the surface of the optical element. The methods beneficially permit materials that do not exhibit local variation in physical and chemical properties to be provided with ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 21, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. FRANTZ, Lynda E. BUSSE, L. Brandon SHAW, Jasbinder S. SANGHERA, Ishwar D. AGGARWAL, Menelaos K. Poutous
  • Publication number: 20180136370
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a seed layer of material deposited on the surface of the optical element. The seed layer is removed during or after the etching, and serves to control etching time as well as the transmission region of the optical element having ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Lynda E. Busse, Jesse A. Frantz, L. Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Menelaos K. Poutous
  • Publication number: 20180136368
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on optical elements. Optical elements having ARSS on at least one surface are also provided.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. Frantz, Lynda E. Busse, L. Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Kevin J. Major, Menelaos K. Poutous, Karteek Kunala
  • Patent number: 9857295
    Abstract: A comparative discrimination spectral detection (CDSD) system for the identification of chemicals with overlapping spectral signatures, including: a radiation source for delivering radiation to a sample; a radiation collector for collecting radiation from the sample; a plurality of beam splitters for splitting the radiation collected from the sample into a plurality of radiation beams; a plurality of low-resolution optical filters for filtering the plurality of radiation beams; a plurality of radiation detectors for detecting the plurality filtered radiation beams; and a processor for: receiving a set of reference spectra related to a set of target chemicals and generating a set of base vectors for the set of target chemicals from the set of reference spectra, wherein the set of base vectors define a geometrical shape in a configuration space; receiving a set of filtered test spectra from the plurality of radiation detectors and generating a set of test vectors in the configuration space from the set of filte
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: January 2, 2018
    Assignee: The University Of North Carolina At Charlotte
    Inventors: Menelaos K. Poutous, Ishwar D. Aggarwal, Kevin J. Major, Jas S. Sanghera, Ken Ewing
  • Publication number: 20170307782
    Abstract: The present invention provides a specific gradient-optical-index porous (GRIP) layer coating on inorganic optical substrate surfaces, and the fabrication method used to create the GRIP layer coating. The method consists of two major processing steps: (1) the co-deposition of an optical index-matching material and a mass density-modulating material, followed by (2) the sacrificial etch of the mass-density-modulating material to reveal a GRIP surface. The method is designed for use with crystalline, polycrystalline, and dry or wet etch-resistant substrate materials, where anti-reflective (AR) solutions using AR surface structures (ARSSs) do not exist. These coatings are designed to minimize Fresnel reflectivity of the original substrate surfaces, using a single porous layer matched to the optical index of the original substrate material.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 26, 2017
    Inventors: Menelaos K. POUTOUS, Ishwar D. AGGARWAL, Abigail H. PELTIER, Lynda E. BUSSE, Jesse FRANTZ, L. Brandon SHAW, Jas S. SANGHERA
  • Publication number: 20170045442
    Abstract: A comparative discrimination spectral detection (CDSD) system for the identification of chemicals with overlapping spectral signatures, including: a radiation source for delivering radiation to a sample; a radiation collector for collecting radiation from the sample; a plurality of beam splitters for splitting the radiation collected from the sample into a plurality of radiation beams; a plurality of low-resolution optical filters for filtering the plurality of radiation beams; a plurality of radiation detectors for detecting the plurality filtered radiation beams; and a processor for: receiving a set of reference spectra related to a set of target chemicals and generating a set of base vectors for the set of target chemicals from the set of reference spectra, wherein the set of base vectors define a geometrical shape in a configuration space; receiving a set of filtered test spectra from the plurality of radiation detectors and generating a set of test vectors in the configuration space from the set of filte
    Type: Application
    Filed: December 11, 2015
    Publication date: February 16, 2017
    Applicant: The University Of North Carolina At Charlotte
    Inventors: Menelaos K. Poutous, Ishwar D. Aggarwal, Kevin J. Major, Jas S. Sanghera, Ken Ewing
  • Publication number: 20090050774
    Abstract: A micro-optical bench may include a substrate having a substantially planar surface on which an optical element is to be mounted, and two lithographs protruding above the substantially planar surface adapted to position and restrain movement of the optical element.
    Type: Application
    Filed: August 24, 2007
    Publication date: February 26, 2009
    Inventors: Menelaos K. Poutous, James T. A. Carriere