Enhancement of pupil-masked wavelength-scale gas-filled flat acoustic lens based on anomaly apodization effect; Physics Letters A; Vol. 383, iss. 5
| Parent link: | Physics Letters A Vol. 383, iss. 5.— 2019.— [P. 396-399] |
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| Korporativní autor: | |
| Další autoři: | , , , , |
| Shrnutí: | Title screen In this letter, the improvement in focus by the use of a pupil mask produced in an acoustic mesoscale cuboid particle filled with CO2 is reported. Thereby, the result shows that the pupil mask increases the sound intensity and also increases the resolution (or a reduction of the full width at half maximum, FWHM) in focus compared to the non-masked one. These results are important because they confirm the effect of abnormal amplitude apodization for a one-wavelength dimension acoustic lens and demonstrate that it is possible to improve sound focusing of a cuboid gas-filled lens with one wavelength dimension. This is the smallest size of an acoustic lens ever considered in this type of literature, with side dimensions of the cube equal to one wavelength and a diameter to focus ratio of 2.5, the sound amplification in focus is 5.4 dB at 4125 Hz, with the resolution near to the diffraction limit. Режим доступа: по договору с организацией-держателем ресурса |
| Jazyk: | angličtina |
| Vydáno: |
2019
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| Témata: | |
| On-line přístup: | https://doi.org/10.1016/j.physleta.2018.11.014 |
| Médium: | MixedMaterials Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664373 |
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| 200 | 1 | |a Enhancement of pupil-masked wavelength-scale gas-filled flat acoustic lens based on anomaly apodization effect |f C. Rubio, D. Tarrazo-Serrano, O. V. Minin [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 32 tit.] | ||
| 330 | |a In this letter, the improvement in focus by the use of a pupil mask produced in an acoustic mesoscale cuboid particle filled with CO2 is reported. Thereby, the result shows that the pupil mask increases the sound intensity and also increases the resolution (or a reduction of the full width at half maximum, FWHM) in focus compared to the non-masked one. These results are important because they confirm the effect of abnormal amplitude apodization for a one-wavelength dimension acoustic lens and demonstrate that it is possible to improve sound focusing of a cuboid gas-filled lens with one wavelength dimension. This is the smallest size of an acoustic lens ever considered in this type of literature, with side dimensions of the cube equal to one wavelength and a diameter to focus ratio of 2.5, the sound amplification in focus is 5.4 dB at 4125 Hz, with the resolution near to the diffraction limit. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physics Letters A | ||
| 463 | |t Vol. 383, iss. 5 |v [P. 396-399] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a sound focusing | |
| 610 | 1 | |a gas-filled lens | |
| 610 | 1 | |a cuboid particle | |
| 610 | 1 | |a apodization | |
| 610 | 1 | |a diffraction | |
| 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 |9 21866 | |
| 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 неразрушающего контроля и безопасности |b Отделение электронной инженерии |3 (RuTPU)RU\TPU\col\23507 |
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