Negative refractions by triangular lattice sonic crystals in partial band gaps*
Alagoz S.a)†, Alagoz B. B.b), Sahin A.a), Nur S.c)
       
(a) Pressure field image of guided negative refraction pattern, (b) a close view of the pressure field image in panel (a), and (c) distribution of average pressure field amplitudes, obtained from FDTD simulation.