Patents by Inventor Urcan Guler

Urcan Guler 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: 20210234498
    Abstract: A system including a first cylindrical structure embedded into a second cylindrical structure. The first cylindrical structure includes a combustion chamber. The first cylinder additionally includes a plurality of plasmonic materials on an outer wall of the first cylindrical structure. The second cylindrical structure includes a plurality of photovoltaic cells on an inner wall of the second cylindrical structure. A radius of the second cylindrical structure is greater than a radius of the first cylindrical structure.
    Type: Application
    Filed: May 1, 2020
    Publication date: July 29, 2021
    Applicant: Purdue Research Foundation
    Inventors: Esteban Marinero-Caceres, Arnold Toppo, Sajid Choudhury, Urcan Guler, Zhaxylyk Kudyshev, Joseph Pekny, Swati Pol, Harsha Reddy, Vladimir Shalaev
  • Publication number: 20210170528
    Abstract: A method is provided for additively manufacturing an object. This method includes: depositing a layer of material on a build surface; consolidating at least a portion of the layer of material together to form a portion of the object, the consolidating comprising directing an energy beam onto the material to form a melt pool; directing a beam of light onto the melt pool; detecting a response from the beam of light interacting with the melt pool; and determining a parameter of the melt pool based on the detected response.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 10, 2021
    Inventors: Urcan Guler, John A. Sharon, Paul Sheedy
  • Publication number: 20210140336
    Abstract: A remote temperature measurement system for a gas turbine engine includes an optical emitter/receiver in communication with the control system and a probe system embedded within a component of the gas turbine engine, the probe system within a line-of-sight of the optical emitter/receiver, the control system operable to determine a local temperature of the component in response to optical communication with the probe system.
    Type: Application
    Filed: November 11, 2019
    Publication date: May 13, 2021
    Applicant: United Technologies Corporation
    Inventors: Urcan Guler, Paul Sheedy, John A. Sharon, Wayde R. Schmidt
  • Publication number: 20210025775
    Abstract: A pressure sensing film includes first and second films. The first and second films are configured to form an optical cavity therebetween. A flexible transparent film is arranged in the optical cavity. The flexible transparent film is compressible in response to a pressure change in air adjacent the pressure sensing film. A pressure sensing device and a method of sensing pressure adjacent a surface are also disclosed.
    Type: Application
    Filed: July 26, 2019
    Publication date: January 28, 2021
    Inventors: Urcan Guler, Kenji Homma, Xuemei Wang
  • Patent number: 10670772
    Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 2, 2020
    Assignee: Purdue Research Foundation
    Inventors: Urcan Guler, Alexander V. Kildishev, Krishnakali Chaudhury, Shaimaa Azzam, Esteban E. Marinero-Caceres, Harsha Reddy, Alexandra Boltasseva, Vladimir M Shalaev
  • Publication number: 20200054752
    Abstract: Disclosed herein are nanoparticle-based plasmonic solutions to therapeutic applications employing titanium nitride (TiN) and other non-stoichiometric compounds as the plasmonic material. Current solutions are suboptimal because they require complex shapes, large particle sizes, and a narrow range of sizes, in order to achieve plasmonic resonances in the biological window. The nanoparticles discloses herein provide plasmonic resonances occurring in the biological window even with small sizes, simple shapes, and better size dispersion restrictions. Local heating efficiencies of such nanoparticles outperform currently used Au and transition metal nanoparticles. The use of smaller particles with simpler shapes and better heating efficiencies allows better diffusion properties into tumor regions, larger penetration depth of light into the biological tissue, and the ability to use excitation light of less power.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 20, 2020
    Applicant: Purdue Research Foundation
    Inventors: Urcan Guler, Alexander Kildishev, Gururaj Naik, Alexandra Boltasseva, Vladimir M. Shalaev
  • Publication number: 20180329115
    Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.
    Type: Application
    Filed: May 14, 2018
    Publication date: November 15, 2018
    Applicant: Purdue Research Foundation
    Inventors: Alexander V. Kildishev, Urcan Guler, Krishnakali Chaudhury, Shaimaa Azzam, Esteban E. Marinero-Caceres, Harsha Reddy, Alexandra Boltasseva, Vladimir M Shalaev
  • Publication number: 20180003865
    Abstract: A nanostructured material system for efficient collection of photo-excited carriers is provided. They system comprises a plurality of plasmonic metal nitride core material elements coupled to a plurality of semiconductor material elements. The plasmonic nanostructured elements form ohmic junctions at the surface of the semiconductor material or at close proximity with the semiconductor material elements. A nanostructured material system for efficient collection of photo-excited carriers is also provided, comprising a plurality of plasmonic transparent conducting oxide core material elements coupled to a plurality of semiconductor material elements. The field enhancement, local temperature increase and energized hot carriers produced by nanostructures of these plasmonic material systems play enabling roles in various chemical processes. They induce, enhance, or mediate catalytic activities in the neighborhood when excited near the resonance frequencies.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Applicant: Purdue Research Foundation
    Inventors: Urcan Guler, Alberto Naldoni, Alexander Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev
  • Publication number: 20170269300
    Abstract: The invention related to single photon emission systems based on nano-diamonds. Single-photon sources have a broad range of applications in quantum communication, quantum computing and quantum metrology.
    Type: Application
    Filed: November 5, 2015
    Publication date: September 21, 2017
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: URCAN GULER, ALEXANDER V. KILDISHEV, VLADIMIR M. SHALAEV, ALEXEI S. LAGUTCHEV, ANDREY N. SMOLYANINOV
  • Patent number: 9343088
    Abstract: An apparatus and method for heat-assisted magnetic recording (HAMR) employing a near-field transducer (NFT) made of plasmonic ceramic materials or intermetallics are disclosed. The NFT is made of a plasmonic material as well as a protective outer layer, which provides for longer usefulness and improved performance of the NFT and recording device. The plasmonic materials used include but are not limited to TiNx, ZrNx, HfNx, TaNx, VNx, TiSi2?x, TiAlxNy, TiZrxNy, ZnO, SnO2, In2O3, RuO2, Lu2O3, WO2, and MgB2. Such materials, in combination with a protective layer, provide higher resistances and greater performance at temperatures required for HAMR, ranging from 300 up to 500 degrees Celsius.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 17, 2016
    Assignee: PURDUE RESEARCH FOUNDATION
    Inventors: Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexandra Boltasseva, Donald Stocks, Gururaj Naik
  • Publication number: 20160120978
    Abstract: Disclosed herein are nanoparticle-based plasmonic solutions to therapeutic applications employing titanium nitride (TiN) and other non-stoichiometric compounds as the plasmonic material. Current solutions are suboptimal because they require complex shapes, large particle sizes, and a narrow range of sizes, in order to achieve plasmonic resonances in the biological window. The nanoparticles discloses herein provide plasmonic resonances occurring in the biological window even with small sizes, simple shapes, and better size dispersion restrictions. Local heating efficiencies of such nanoparticles outperform currently used Au and transition metal nanoparticles. The use of smaller particles with simpler shapes and better heating efficiencies allows better diffusion properties into tumor regions, larger penetration depth of light into the biological tissue, and the ability to use excitation light of less power.
    Type: Application
    Filed: May 23, 2014
    Publication date: May 5, 2016
    Inventors: Urcan GULER, Alexander KILDISHEV, Gururaj NAIK, Alexandra BOLTASSEVA, Vladimir M. SHALAEV
  • Publication number: 20150287425
    Abstract: An apparatus and method for heat-assisted magnetic recording (HAMR) employing a near-field transducer (NFT) made of plasmonic ceramic materials or intermetallics are disclosed. The NFT is made of a piasmonic material as well as a protective outer layer, which provides for longer usefulness and improved performance of the NFT and recording device. The plasmonic materials used include but are not limited to TiNx, ZrNx, HfNx, TaNx, VNx, TiSi2?x, TiAlxNy, TiZrxNy, ZnO, SnO2, In2O3, RuO2, Lu2O3, WO2, and MgB2. Such materials, in combination with a protective layer, provide higher resistances and greater performance at temperatures required for HAMR, ranging from 300 up to 500 degrees Celsius.
    Type: Application
    Filed: May 19, 2014
    Publication date: October 8, 2015
    Inventors: Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexandra Boltasseva, Donald Stocks, Gururaj Naik
  • Publication number: 20150288318
    Abstract: The present invention provides a new system and new devices comprising highly efficient metamaterial-based absorbers and emitters which may be employed in various energy harvesting applications Compelling conditions such as high temperatures. The employment of ceramic materials in such applications enables devices with longer lifetimes and improved performance. Specific geometric and structural designs, e.g., by arrangement of plasmonic and dielectric structures, of the metamaterials provide for efficient absorption of light within a broad spectral range and emission of that energy in a particular range via selective emitters which may, in turn, be coupled to other devices.
    Type: Application
    Filed: June 6, 2014
    Publication date: October 8, 2015
    Inventors: Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexandra Boltasseva, Gururaj Naik