Schematic of the proposed structure with periodic pillars on a Si membrane (a). (b): Calculated phonon dispersion curves of 100nm thick Si membrane (b), and of the phononic structure with SiO2 pillars (c). (d) Displacement field of the modes at the points marked with red dots in (c)
Courtesy:
J. Gomis et al.
Source:
nanoICT Strategic Research Agenda - Annex 1 - Nanophotonics and Nanophononics