Patents by Inventor Patrick F. Tekavec

Patrick F. Tekavec 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).

  • Optical parametric oscillator for generating terahertz radiation
    Patent number: 10139701
    Abstract: An optical parameter oscillator (OPO) is pumped at pump wavelength ?P to resonate at signal wavelength ?S. The OPO produces idler radiation at terahertz frequencies ?THz=c/?P?c/?S. The pump, signal, and idler radiation are substantially collinear.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: November 27, 2018
    Assignee: MICROTECH INSTRUMENTS, INC
    Inventors: Patrick F. Tekavec, Vladimir G. Kozlov
  • OPTICAL PARAMETRIC OSCILLATOR FOR GENERATING TERAHERTZ RADIATION
    Publication number: 20180101085
    Abstract: An optical parameter oscillator (OPO) is pumped at pump wavelength ?P to resonate at signal wavelength ?S. The OPO produces idler radiation at terahertz frequencies ?THz=c/?P?c/?S. The pump, signal, and idler radiation are substantially collinear.
    Type: Application
    Filed: November 29, 2016
    Publication date: April 12, 2018
    Inventors: Patrick F. Tekavec, Vladimir G. Kozlov
  • Systems and methods for high-contrast, near-real-time acquisition of terahertz images
    Publication number: 20170067783
    Abstract: A cw terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR cw upconverting beam). The upconverted image is acquired by a near IR image detector. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
    Type: Application
    Filed: June 3, 2016
    Publication date: March 9, 2017
    Inventors: Vladimir G. Kozlov, Patrick F. Tekavec
  • Systems and methods for high-contrast, near-real-time acquisition of terahertz images
    Patent number: 9574944
    Abstract: A cw terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR cw upconverting beam). The upconverted image is acquired by a near IR image detector. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 21, 2017
    Assignee: MICROTECH INSTRUMENTS, INC.
    Inventors: Vladimir G. Kozlov, Patrick F. Tekavec
  • Systems and methods for high-contrast, near-real-time acquisition of terahertz images
    Patent number: 9377362
    Abstract: A terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR upconverting beam). The upconverted image is acquired by a near IR image detector. The terahertz image beam and upconverting beam comprise trains of picosecond pulses. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: June 28, 2016
    Assignee: MICROTECH INSTRUMENTS, INC.
    Inventors: Vladimir G. Kozlov, Patrick F. Tekavec
  • Systems and methods for high-contrast, near-real-time acquisition of terahertz images
    Publication number: 20150153234
    Abstract: A terahertz image beam is upconverted by a nonlinear optical process (e.g., sum- or difference-frequency generation with a near IR upconverting beam). The upconverted image is acquired by a near IR image detector. The terahertz image beam and upconverting beam comprise trains of picosecond pulses. The bandwidths and center wavelengths of the terahertz image beam and the upconverting beam are such that wavelength filtering can be employed to permit an upconverted image beam to reach the detector while blocking or substantially attenuating the upconverting beam.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 4, 2015
    Inventors: Vladimir G. Kozlov, Patrick F. Tekavec