Patents Assigned to The University of Arizona, The Arizona Board of Re gents
  • VISCOELASTIC PHONONIC CRYSTAL
    Publication number: 20110100746
    Abstract: A sound barrier and method of sound insulation are disclosed. In one aspect of the disclosure, a sound barrier comprises a first, solid medium, such as a viscoelastic solid and a second medium, such as air. At least one of the two media forms a periodic array disposed in the other medium. The solid medium has a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave.
    Type: Application
    Filed: December 15, 2008
    Publication date: May 5, 2011
    Applicants: 3M Innovative Properties Company, The University of Arizona, The Arizona Board of Re gents
    Inventors: Ali Berker, Manish Jain, Mark D. Purgett, Sanat Mohanty, Pierre A. Deymier, Bassam Merheb