Patents by Inventor Xiaoman Duan

Xiaoman Duan 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).

  • Light trapping in thin film solar cells using textured photonic crystal
    Patent number: 7482532
    Abstract: A solar cell includes a photoactive region that receives light. A photonic crystal is coupled to the photoactive region, wherein the photonic crystal comprises a distributed Bragg reflector (DBR) for trapping the light.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: January 27, 2009
    Assignee: Massachusetts Institute of Technology
    Inventors: Yasha Yi, Lionel C. Kimerling, Xiaoman Duan, Lirong Zeng
  • Silicon based on-chip photonic band gap cladding waveguide
    Patent number: 7321713
    Abstract: A waveguide structure includes a core structure that has low index materials. A photonic crystal cladding structure utilized in guiding optical modes in the core. The photonic crystal cladding structure includes alternating layers of Si and Si3N4.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: January 22, 2008
    Assignee: Massachusetts Institute of Technology
    Inventors: Shoji Akiyama, Xiaoman Duan, Lionel C. Kimerling, Yasha Yi
  • Light trapping in thin film solar cells using textured photonic crystal
    Publication number: 20070000536
    Abstract: A solar cell includes a photoactive region that receives light. A photonic crystal is coupled to the photoactive region, wherein the photonic crystal comprises a distributed Bragg reflector (DBR) for trapping the light.
    Type: Application
    Filed: August 1, 2005
    Publication date: January 4, 2007
    Inventors: Yasha Yi, Lionel Kimerling, Xiaoman Duan, Lirong Zeng
  • Silicon based on-chip photonic band gap cladding waveguide
    Publication number: 20060088265
    Abstract: A waveguide structure includes a core structure that has low index materials. A photonic crystal cladding structure utilized in guiding optical modes in the core. The photonic crystal cladding structure includes alternating layers of Si and Si3N4.
    Type: Application
    Filed: September 19, 2005
    Publication date: April 27, 2006
    Inventors: Shoji Akiyama, Xiaoman Duan, Lionel Kimerling, Yasha Yi