Wavelength-scale gas-filled cuboid acoustic lens with diffraction limited focusing; Results in Physics; Vol. 12
| Parent link: | Results in Physics Vol. 12.— 2019.— [P. 1905-1908] |
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| Συγγραφή απο Οργανισμό/Αρχή: | |
| Άλλοι συγγραφείς: | , , , , |
| Περίληψη: | Title screen Per the laws of geometrical optics, a plane-parallel medium does not possess focusing properties. However, in this paper, we demonstrate for the first time that an acoustic cuboid particle filled with CO2 is able to focus sound despite its flat surface. It is worth noting that traditional lenses focus sound through their curved surfaces. We report both numerically and experimentally the acoustic focusing of a cuboid of 2[lambda] side, where [lambda] is the wavelength in air. From these results, it can be derived that its focusing capabilities are close to the diffraction limit: at frequency of 5000 Hz, acoustic beam waist is about 0.5 wavelength and the gain is 8.8 dB. The flat structure lens proposed open new possibilities to design and built new lightweight and low cost acoustic lenses for different applications |
| Γλώσσα: | Αγγλικά |
| Έκδοση: |
2019
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| Θέματα: | |
| Διαθέσιμο Online: | https://doi.org/10.1016/j.rinp.2019.02.011 |
| Μορφή: | xMaterials Ηλεκτρονική πηγή Κεφάλαιο βιβλίου |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664305 |
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| 200 | 1 | |a Wavelength-scale gas-filled cuboid acoustic lens with diffraction limited focusing |f C. Rubio, D. Tarrazo-Serrano, O. V. Minin [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 27 tit.] | ||
| 330 | |a Per the laws of geometrical optics, a plane-parallel medium does not possess focusing properties. However, in this paper, we demonstrate for the first time that an acoustic cuboid particle filled with CO2 is able to focus sound despite its flat surface. It is worth noting that traditional lenses focus sound through their curved surfaces. We report both numerically and experimentally the acoustic focusing of a cuboid of 2[lambda] side, where [lambda] is the wavelength in air. From these results, it can be derived that its focusing capabilities are close to the diffraction limit: at frequency of 5000 Hz, acoustic beam waist is about 0.5 wavelength and the gain is 8.8 dB. The flat structure lens proposed open new possibilities to design and built new lightweight and low cost acoustic lenses for different applications | ||
| 461 | |t Results in Physics | ||
| 463 | |t Vol. 12 |v [P. 1905-1908] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a sound focusing | |
| 610 | 1 | |a CO2 acoustic | |
| 610 | 1 | |a lens | |
| 610 | 1 | |a diffraction limit | |
| 610 | 1 | |a фокусировка | |
| 610 | 1 | |a линзы | |
| 610 | 1 | |a оптика | |
| 610 | 1 | |a дифракция | |
| 701 | 1 | |a Rubio |b C. |g Constanza | |
| 701 | 1 | |a Tarrazo-Serrano |b D. |g Daniel | |
| 701 | 1 | |a Minin |b O. V. |c physicist |c professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1960- |g Oleg Vladilenovich |3 (RuTPU)RU\TPU\pers\44941 | |
| 701 | 1 | |a Uris |b A. |g Antonio | |
| 701 | 1 | |a Minin |b I. V. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of technical sciences |f 1960- |g Igor Vladilenovich |3 (RuTPU)RU\TPU\pers\37571 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа ядерных технологий |b Отделение экспериментальной физики |3 (RuTPU)RU\TPU\col\23549 |
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