ArticleScientific reports2021
Cloaking, trapping and superlensing of lamb waves with negative refraction.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Low Dielectric Medium for Hyperbolic Phonon Polariton Waveguide in van der Waals Heterostructures.Nanomaterials (Basel, Switzerland) · 2024Article
- Beating resonance patterns and extreme power flux skewing in anisotropic elastic plates.Science advances · 2023Article
- Backward Acoustic Waves in Piezoelectric Plates: Possible Application as Base for Liquid Sensors.Sensors (Basel, Switzerland) · 2023Article
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Authors and funding
7 authors.
Funding
Abstract
We report on experimental and numerical implementations of devices based on the negative refraction of elastic guided waves, the so-called Lamb waves. Consisting in plates of varying thickness, these devices rely on the concept of complementary media, where a particular layout of negative index media can cloak an object with its anti-object or trap waves around a negative corner. The diffraction cancellation operated by negative refraction is investigated by means of laser ultrasound experiments. However, unlike original theoretical predictions, these intriguing wave phenomena remain, nevertheless, limited to the propagating component of the wave-field. To go beyond the diffraction limit, negative refraction is combined with the concept of metalens, a device converting the evanescent components of an object into propagating waves. The transport of an evanescent wave-field is then possible from an object plane to a far-field imaging plane. Twenty years after Pendry's initial proposal, this work thus paves the way towards an elastic superlens.
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Registered trials
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