| 000 | 03208nlm1a2200457 4500 | ||
|---|---|---|---|
| 001 | 664316 | ||
| 005 | 20231030041925.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\35500 | ||
| 035 | _aRU\TPU\network\30927 | ||
| 090 | _a664316 | ||
| 100 | _a20210408a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aCH | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aDesign of acoustical bessel-like beam formation by a pupil masked soret zone plate lens _fD. Tarrazo-Serrano, S. Castineira-Ibanez, O. V. Minin [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 49 tit.] | ||
| 330 | _aThe image performance of acoustic and ultrasound sensors depends on several fundamental parameters such as depth of focus or lateral resolution. There are currently two different types of acoustic diffractive lenses: those that form a diffraction-limited spot with a shallow depth of focus (zone plates) and lenses that form an extended focus (quasi-Bessel beams). In this paper, we investigate a pupil-masked Soret zone plate, which allows the tunability of a normalized angular spectrum. It is shown that the depth of focus and the lateral resolution can be modified, without changing the lens structure, by choosing the size of the pupil mask. This effect is based on the transformation of spherically-converging waves into quasi-conical waves, due to the apodization of the central part of the zone plate. The theoretical analysis is verified with both numerical simulations and experimental measurements. A Soret zone plate immersed in water with D/2F=2.5 and F=4.5[lambda] changes its depth of focus from 2.84[lambda] to 5.9[lambda] and the lateral resolution increases from 0.81[lambda] to 0.64[lambda] at a frequency of 250 kHz, by modifying the pupil mask dimensions of the Soret zone plate. | ||
| 461 | _tSensors | ||
| 463 |
_tVol. 19, iss. 2 _v[378, 11 р.] _d2019 |
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| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aultrasonic lens | |
| 610 | 1 | _aapodization | |
| 610 | 1 | _asoret zone plate | |
| 610 | 1 | _aультразвуковые линзы | |
| 610 | 1 | _aаподизация | |
| 610 | 1 | _aпластины | |
| 701 | 1 |
_aTarrazo-Serrano _bD. _gDaniel |
|
| 701 | 1 |
_aCastineira-Ibanez _bS. _gSergio |
|
| 701 | 1 |
_aMinin _bO. V. _cphysicist _cprofessor of Tomsk Polytechnic University, Doctor of technical sciences _f1960- _gOleg Vladilenovich _2stltpush _3(RuTPU)RU\TPU\pers\44941 |
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| 701 | 1 |
_aCandelas _bP. _gPilar |
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| 701 | 1 |
_aRubio _bC. _gConstanza |
|
| 701 | 1 |
_aMinin _bI. V. _cphysicist _cSenior researcherof Tomsk Polytechnic University, Doctor of technical sciences _f1960- _gIgor Vladilenovich _2stltpush _3(RuTPU)RU\TPU\pers\37571 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа неразрушающего контроля и безопасности _bОтделение электронной инженерии _h7977 _2stltpush _3(RuTPU)RU\TPU\col\23507 |
| 801 | 2 |
_aRU _b63413507 _c20210408 _gPSBO |
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| 856 | 4 | _uhttps://doi.org/10.3390/s19020378 | |
| 942 | _cCF | ||