Patents by Inventor Ehsan Vadiee

Ehsan Vadiee 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: 20240142687
    Abstract: A lighting assembly may include a light source and a reflective polarizer overlapping the light source. A portion of light that is incident on the reflective polarizer may not pass through the reflective polarizer and may be reflected back to the light source. The light source may include at least one of a light emitting diode (LED), a micro-LED, an organic light emitting diode (OLED), a micro-OLED, a liquid crystal on silicon (LCoS), or an fLCoS light source. The reflective polarizer may include a polymer birefringent multilayer structure of alternating first layers and second layers. The first layers may each include an isotropic polymer thin film the second layers each include an anisotropic polymer thin film. Various other devices, systems, and methods are also disclosed.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Inventors: Liliana Ruiz Diaz, Sheng Ye, Zhaoyu Nie, Tanya Malhotra, Christopher Yuan Ting Liao, Ehsan Vadiee, Andrew John Ouderkirk
  • Publication number: 20240004204
    Abstract: The disclosed apparatus may include an optical modulator including a first layer with at an organic layer and/or an organometallic layer; and a second layer with an extrinsic semiconductor layer and/or an electrode layer. Various other apparatuses and systems are also disclosed.
    Type: Application
    Filed: May 1, 2023
    Publication date: January 4, 2024
    Inventors: Tingling Rao, Lafe Joseph Purvis, II, Andrew John Ouderkirk, Renate Eva Klementine Landig, Ehsan Vadiee, Namseok Park, Kimberly Kay Childress, Arman Boromand, Tanya Malhotra
  • Publication number: 20230393305
    Abstract: An optical element includes a substrate and a metasurface located over a surface of the substrate. The metasurface may include an organic solid crystal material. A related display includes a waveguide, and a light input coupling element disposed on a surface of the waveguide, where the light input coupling element includes an organic solid crystal metasurface.
    Type: Application
    Filed: January 24, 2023
    Publication date: December 7, 2023
    Inventors: Tanya Malhotra, Lafe Joseph Purvis, II, Ehsan Vadiee, Tingling Rao, Arman Boromand, Renate Eva Klementine Landig, Andrew John Ouderkirk
  • Publication number: 20230396032
    Abstract: A device includes an active laser medium operative to emit spatially coherent light of a predetermined wavelength along an optical axis, first and second mirrors aligned with the optical axis and defining a resonant cavity enclosing the active laser medium, and a modulator including an organic solid crystal disposed along the optical axis between the first and second mirrors and configured to change a polarization state of the emitted light.
    Type: Application
    Filed: April 4, 2023
    Publication date: December 7, 2023
    Inventors: Ehsan Vadiee, Tingling Rao, Tanya Malhotra, Andrew John Ouderkirk
  • Publication number: 20230396037
    Abstract: A MEMS-based vertical cavity surface emitting laser (VCSEL) includes an embedded photodiode. A representative VCSEL includes a distributed Bragg reflector (DBR), a photodiode structure located within the distributed Bragg reflector, an active region overlying the distributed Bragg reflector, and a MEMS upper reflector disposed over the active region. The VCSEL may be configured as an optical sensor. The laser cavity and hence a working wavelength of the sensor may be tuned by modulating the MEMS reflector such as through an applied voltage.
    Type: Application
    Filed: April 7, 2023
    Publication date: December 7, 2023
    Inventors: Ehsan Vadiee, Youmin Wang, Andrew John Ouderkirk, Robert Dale Cavin
  • Publication number: 20230397470
    Abstract: A light-emitting device includes a light-emitting diode having an emissive surface, and a capping layer including an organic solid crystal overlying the emissive surface. The refractive index of the organic solid crystal may be tuned such as through the application of a voltage, current, or stress to improve the light extraction efficiency of the device.
    Type: Application
    Filed: January 24, 2023
    Publication date: December 7, 2023
    Inventors: Tanya Malhotra, Batagoda Kankanamalage Thilini Batagoda, Kilbock Lee, Andrew John Ouderkirk, Lafe Joseph Purvis, II, Ehsan Vadiee, Tingling Rao, Arman Boromand
  • Publication number: 20230393317
    Abstract: A multilayer reflective polarizer includes a layer of a birefringent organic solid crystal, where the birefringent organic solid crystal has a refractive index of at least approximately 1.5 and a birefringence of at least approximately 0.1. The multilayer reflective polarizer may be configured to include alternating layers of a birefringent organic solid crystal material and a secondary material layer selected from an amorphous polymer, an inorganic amorphous compound, a liquid crystal, and an OSC material. The refractive index of the birefringent organic solid crystal layer(s) may be modified through the application of an applied voltage, current, or stress.
    Type: Application
    Filed: March 1, 2023
    Publication date: December 7, 2023
    Inventors: Tanya Malhotra, Zhaoyu Nie, Anurag Tyagi, Lafe Joseph Purvis, II, Andrew John Ouderkirk, Ehsan Vadiee, Tingling Rao, Arman Boromand, Namseok Park, Kimberly Kay Childress
  • Patent number: 11810908
    Abstract: A method of forming a high voltage optical transformer includes forming a via through a transparent carrier wafer, forming a conductive layer within the via, bonding a solid state lighting (SSL) package to a first side of the carrier wafer, and bonding a photovoltaic (PV) wafer to a second side of the carrier wafer opposite to the first side. The photovoltaic wafer may include an active area and a conductive area located outside of the active area that is in electrical contact with the conductive layer. The method further includes forming both an SSL contact with the solid state lighting package and a PV contact with the conductive layer on the same side of the carrier wafer.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: November 7, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Christopher Yuan Ting Liao, Maik Andre Scheller, Jonathan Robert Peterson, Ehsan Vadiee, John Goward, Anurag Tyagi, Andrew John Ouderkirk
  • Publication number: 20230194912
    Abstract: An optical modulator includes an active layer of an organic solid crystalline phase, a primary electrode disposed over a first portion of the active layer, and a secondary electrode disposed over a second portion of the active layer, where an optical property of the active layer is configured to have a first value along a chosen direction in a first biased state and a second value along the chosen direction in a second biased state.
    Type: Application
    Filed: October 20, 2022
    Publication date: June 22, 2023
    Inventors: Tingling Rao, Lafe Joseph Purvis, II, Andrew John Ouderkirk, Arman Boromand, Kimberly Kay Childress, Ehsan Vadiee, Namseok Park, Poer Sung, Tanya Malhotra
  • Publication number: 20230194764
    Abstract: A birefringent organic thin film includes mutually orthogonal in-plane refractive indices (nx and ny) and a through thickness refractive index (nz), where nx>1.4, ny?1.4, nz>1.4, Dnxy?0.1, Dnxz<0.01, and Dnyz<0.01. Optical properties including refractive index and birefringence may be continuously tuned by applying a voltage across the birefringent organic thin film.
    Type: Application
    Filed: October 24, 2022
    Publication date: June 22, 2023
    Inventors: Lafe Joseph Purvis, II, Tingling Rao, Andrew John Ouderkirk, Arman Boromand, Kimberly Kay Childress, Ehsan Vadiee, Namseok Park, Poer Sung
  • Publication number: 20230194785
    Abstract: A photonic integrated circuit (PIC) includes an organic solid crystal (OSC) material layer, the OSC material layer having a substrate portion and a raised optical element integral with and extending from the substrate portion. The raised optical element may include a passive or active component of the photonic integrated circuit.
    Type: Application
    Filed: November 17, 2022
    Publication date: June 22, 2023
    Inventors: Lafe Joseph Purvis, II, Tingling Rao, Andrew John Ouderkirk, Arman Boromand, Kimberly Kay Childress, Ehsan Vadiee, Namseok Park, Poer Sung
  • Publication number: 20230194951
    Abstract: An optical diffraction grating includes a layer of organic solid crystal (OSC) material, an input photonic element configured to couple an input beam to the organic solid crystal material, and an output photonic element configured to receive an output beam from the organic solid crystal material. An applied voltage may be used to control the refractive index of the OSC material and accordingly tune the operation of the optical diffraction grating.
    Type: Application
    Filed: October 24, 2022
    Publication date: June 22, 2023
    Inventors: Lafe Joseph Purvis, II, Tingling Rao, Andrew John Ouderkirk, Arman Boromand, Kimberly Kay Childress, Ehsan Vadiee, Namseok Park
  • Publication number: 20230037175
    Abstract: An organic thin film includes an organic crystalline phase, where the organic crystalline phase defines a surface having a surface roughness (Ra) of less than approximately 10 micrometers over an area of at least approximately 1 cm2. The organic thin film may be manufactured from an organic precursor and a non-volatile medium material that is configured to mediate the surface roughness of the organic crystalline phase during crystal nucleation and growth. The thin film may be formed using a suitably shaped mold, for example, and the non-volatile medium material may be disposed between a layer of the organic precursor and the mold during processing.
    Type: Application
    Filed: February 22, 2022
    Publication date: February 2, 2023
    Inventors: Tingling Rao, Kimberly Kay Childress, Arman Boromand, Lafe Joseph Purvis, II, Ehsan Vadiee, Namseok Park, Andrew John Ouderkirk
  • Publication number: 20220375910
    Abstract: A method of forming a high voltage optical transformer includes forming a via through a transparent carrier wafer, forming a conductive layer within the via, bonding a solid state lighting (SSL) package to a first side of the carrier wafer, and bonding a photovoltaic (PV) wafer to a second side of the carrier wafer opposite to the first side. The photovoltaic wafer may include an active area and a conductive area located outside of the active area that is in electrical contact with the conductive layer. The method further includes forming both an SSL contact with the solid state lighting package and a PV contact with the conductive layer on the same side of the carrier wafer.
    Type: Application
    Filed: May 21, 2021
    Publication date: November 24, 2022
    Inventors: Christopher Yuan Ting Liao, Maik Andre Scheller, Jonathan Robert Peterson, Ehsan Vadiee, John Goward, Anurag Tyagi, Andrew John Ouderkirk