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Author Zhao, Jinfeng ♦ Bonello, Bernard ♦ Becerra, Loïc ♦ Boyko, Olga ♦ Marchal, Rémi
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ AIR ♦ CRYSTALS ♦ FOCUSING ♦ HOLES ♦ RAYLEIGH WAVES ♦ SILICON ♦ SOUND WAVES ♦ SUBSTRATES ♦ ZONES
Abstract We report on the subwavelength focusing of Rayleigh waves using gradient-index (GRIN) phononic crystals (PCs) made of air holes scatters in a thick silicon substrate. The subwavelength focusing is demonstrated both in the inner and in the silicon substrate behind the GRIN PCs by using a non-contact experimental technique. In both situations, the focal zone was observed at the position, which is in very good agreement with our theoretical predictions, at a frequency in the sound cone free of radiation into the substrate.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-05-30
Publisher Place United States
Journal Applied Physics Letters
Volume Number 108
Issue Number 22


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