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Realization of an ultrathin acoustic lens for subwavelength focusing in the megasonic range
In this study, we report the first experimental realization of an ultrathin (0.14λ, λ = 1.482 mm means wavelength at 1 MHz in the water medium) subwavelength focusing acoustic lens that can surpass the Rayleigh diffraction limit (0.61λ/NA, NA means numerical aperture). It is termed a Super-Oscillato...
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| Udgivet i: | Sci Rep |
|---|---|
| Main Authors: | , , , , , |
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
Nature Publishing Group UK
2018
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6002413/ https://ncbi.nlm.nih.gov/pubmed/29904152 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41598-018-27312-5 |
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