Now showing items 1-4 of 4

    • Acoustic microscopy with mechanical scanning—A review 

      Quate, C. F.; Atalar, Abdullah; Wickramasinghe, H. K. (IEEE, 1979-08)
      Acoustic waves in liquids are known to have wavelengths comparable to that of visible light if the frequency is in the gigahertz range. The phenomena of Brillouin scattering in liquids is based on such waves. In helium ...
    • A new directional acoustic lens: V-groove lens 

      Bozkurt, Ayhan; Yaralıoğlu, G. Göksenin; Atalar, Abdullah; Köymen, Hayrettin (IEEE, 1993)
      A new directional acoustic lens is introduced. The geometry is very similar to the line-focus lens except the lens cavity, which is shaped as a groove with flat-bottom V cross section. The slanted planar edges of the groove ...
    • Topological insulator based locally resonant phononic crystals: wave propagation and acoustic band gaps 

      Oltulu, O.; Simsek S.; Mamedov, A. M.; Özbay, Ekmel (Taylor and Francis Inc., 2016)
      ABSTRACT: In the present work the acoustic band structure of a two-dimensional phononic crystal (PC) containing an organic ferroelectric (PVDF- polyvinylidene fluoride) and topological insulator (Bi2Te3) were investigated ...
    • Wave propagation and acoustic band gaps of two-dimensional liquid crystal/solid phononic crystals 

      Oltulu, O.; Mamedov, A. M.; Özbay, Ekmel (Springer Verlag, 2017)
      The vast majority of acoustic wave propagation in phononic band studies has been usually carried out by scattering inclusions embedded in a viscoelastic medium, such as air or water. In this study, we present calculated ...