META 2021, META'12

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Transformation Acoustics: Virtual Pinholes and Collimators
Nicholas Fang, Jun Xu, Yun Jing

Last modified: 2011-12-30


In this invited talk, we will present our preliminary study of a virtual hole and a broadband acoustic collimator, by combination of the concept of complimentary media with transformational acoustics. Such effect is exemplified by a segmental defect in the original cloak, which appears as if a dipole scatterer was under the acoustic imager. The potential application of such novel device concept in underwater communication and medical ultrasound will be also discussed.