论文信息 - Complete phononic bandgaps and bandgap maps in two-dimensional silicon phononic crystal plates

Complete phononic bandgaps and bandgap maps in two-dimensional silicon phononic crystal plates

It is shown that it is possible to obtain complete planar phononic bandgaps in square and hexagonal (honeycomb) lattice phononic crystals formed by etching a periodic array of circular holes in a thin silicon plate (or membrane). Also, better bandgap properties are obtained using the hexagonal lattice structure; and, with practical structure sizes, it is possible-to-obtain a gap-to-midgap ratio of 18-35%.

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