Patents by Inventor Natalija Z. Jovanovic

Natalija Z. Jovanovic 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).

  • Anti-reflection coating for the pass-band of photonic bandgap crystal
    Patent number: 7251402
    Abstract: Light transmission is maximized through the pass band of a photonic bandgap (PBG) crystal (having alternating high- and low-index material) while preserving high reflection for stop band. An anti-reflective coating (ARC) is used to coat the PBG crystal wherein the ARC material has a refractive index of n=(nair×nhigh index material)1/2 and thickness around ?c/8 where ?c is center wavelength.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: July 31, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Shoji Akiyama, Ivan Celanovic, Natalija Z. Jovanovic, Francis O'Sullivan, Kazumi Wada