Sub-wavelength lateral detection of tissue-approximating masses using an ultrasonic metamaterial lens

Traditional methods for ultrasound detection in biomedical application suffer from limited lateral resolution. Here, the authors show that a phononic metamaterial lens can be used for spatial characterisation of subwavelength objects, even beyond the Fresnel zone of the emitting transducer.

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Auteurs principaux: Ezekiel L. Walker, Yuqi Jin, Delfino Reyes, Arup Neogi
Format: article
Langue:EN
Publié: Nature Portfolio 2020
Sujets:
Q
Accès en ligne:https://doaj.org/article/af6e562bd6a44bf9b17cfee7165c2b24
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Résumé:Traditional methods for ultrasound detection in biomedical application suffer from limited lateral resolution. Here, the authors show that a phononic metamaterial lens can be used for spatial characterisation of subwavelength objects, even beyond the Fresnel zone of the emitting transducer.