Patents by Inventor Alejandro W. Rodriguez

Alejandro W. Rodriguez 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).

  • TOPOLOGY OPTIMIZED MULTI-LAYERED META-OPTICS
    Publication number: 20200183050
    Abstract: A multi-layered lens comprises a plurality of metasurface layers. At least some layers of the plurality of metasurface layers include features that exhibit angular phase controls. The angular phases of the at least some layers cause an angular aberration correction or an angle convergence that focuses light onto a focal point regardless of angles of incidence.
    Type: Application
    Filed: June 19, 2018
    Publication date: June 11, 2020
    Applicants: PRESIDENT AND FELLOWS OF HARVARD COLLEGE, PRINCETON UNIVERSITY
    Inventors: Zin LIN, Federico CAPASSO, Alejandro W. RODRIGUEZ, Marko LONCAR, Benedikt GROEVER
  • Efficient terahertz sources based on difference-frequency generation in triply-resonant photonic resonators
    Patent number: 8285091
    Abstract: A system for efficient generation of THz radiation is provided that includes a triply-resonant nonlinear photonic resonator coupled to at least one near-infrared (NIR) or optical waveguide and to at least one THz waveguide. The energy traveling through the at least one near-infrared (NIR) or optical waveguide is converted to THz radiation inside the triply-resonant photonic resonator via a nonlinear difference frequency generation (DFG) process.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: October 9, 2012
    Assignees: Massachusetts Institute of Technology, President & Fellows of Harvard College
    Inventors: Jorge Bravo-Abad, Ian B. Burgess, John D. Joannopoulos, Steven G. Johnson, Marko Loncar, Murray W. McCutcheon, Alejandro W. Rodriguez, Marin Soljacic, Yinan Zhang
  • EFFICIENT TERAHERTZ SOURCES BASED ON DIFFERENCE-FREQUENCY GENERATION IN TRIPLY-RESONANT PHOTONIC RESONATORS
    Publication number: 20120194901
    Abstract: A system for efficient generation of THz radiation is provided that includes a triply-resonant nonlinear photonic resonator coupled to at least one near-infrared (NIR) or optical waveguide and to at least one THz waveguide. The energy traveling through the at least one near-infrared (NIR) or optical waveguide is converted to THz radiation inside the triply-resonant photonic resonator via a nonlinear difference frequency generation (DFG) process.
    Type: Application
    Filed: July 12, 2010
    Publication date: August 2, 2012
    Inventors: Jorge Bravo-Abad, Ian B. Burgess, John D. Joannopoulos, Steven G. Johnson, Marko Loncar, Murray W. McCutcheon, Alejandro W. Rodriguez, Marin Soljacic, Yinan Zhang
  • Nonlinear harmonic generation and devices in doubly-resonant Kerr cavities
    Patent number: 8045257
    Abstract: A nonlinear harmonic generation system is provided. The nonlinear harmonic generation system includes a waveguide channel receives and propagates electromagnetic signals. A resonant cavity is coupled to the waveguide channel. The resonant cavity structure includes a plurality of resonant modes into which electromagnetic energy is coupled during the operation of the system. One of the resonant modes includes a resonant frequency that changes during operation of the system to reach either an input-signal frequency or a harmonic frequency for a majority of the time in which harmonic generation is occurring. Both reflected and harmonic fields are emitted back into the waveguide channel so as to allow efficient harmonic generation at a specified critical input power.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: October 25, 2011
    Assignee: Massachusetts Institute of Technology
    Inventors: Hila Hashemi, Alejandro W. Rodriguez, Marin Soljacic, Steven G. Johnson, John D. Joannopoulos
  • NONLINEAR HARMONIC GENERATION AND DEVICES IN DOUBLY-RESONANT KERR CAVITIES
    Publication number: 20110181942
    Abstract: A nonlinear harmonic generation system is provided. The nonlinear harmonic generation system includes a waveguide channel receives and propagates electromagnetic signals. A resonant cavity is coupled to the waveguide channel. The resonant cavity structure includes a plurality of resonant modes into which electromagnetic energy is coupled during the operation of the system. One of the resonant modes includes a resonant frequency that changes during operation of the system to reach either an input-signal frequency or a harmonic frequency for a majority of the time in which harmonic generation is occurring. Both reflected and harmonic fields are emitted back into the waveguide channel so as to allow efficient harmonic generation at a specified critical input power.
    Type: Application
    Filed: May 22, 2009
    Publication date: July 28, 2011
    Inventors: Hila Hashemi, Alejandro W. Rodriguez, Marin Soljacic, Steven G. Johnson, John D. Joannopoulos