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1. (WO2019046450) OPTICAL BREAKDOWN ACOUSTIC TRANSDUCER
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Pub. No.: WO/2019/046450 International Application No.: PCT/US2018/048582
Publication Date: 07.03.2019 International Filing Date: 29.08.2018
IPC:
G01N 29/032 (2006.01) ,G01N 29/06 (2006.01) ,G01N 29/24 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29
Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
02
Analysing fluids
032
by measuring attenuation of acoustic waves
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29
Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
04
Analysing solids
06
Visualisation of the interior, e.g. acoustic microscopy
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29
Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
22
Details
24
Probes
Applicants:
MASSACHUSETTS INSTITUTE OF TECHNOLOGY [US/US]; 77 Massachusetts Avenue Cambridge, MA 02139, US
Inventors:
ATHANASSIADIS, Athanasios, G.; US
Agent:
COLICE, Christopher, Max; US
TEJA JR., Joseph; US
Priority Data:
62/551,54829.08.2017US
Title (EN) OPTICAL BREAKDOWN ACOUSTIC TRANSDUCER
(FR) TRANSDUCTEUR ACOUSTIQUE DE CLAQUAGE OPTIQUE
Abstract:
(EN) An optical breakdown acoustic transducer can generate high-bandwidth, high amplitude acoustic waves via an optical breakdown process. The optical breakdown acoustic transducer can include a vessel having an interior cavity that is substantially filled with a fluid and a light source that emits light. The light can be directed through an optical element that focuses the light to at least one focal point located within the fluid, thereby causing optical breakdown and generation of an acoustic shockwave. The acoustic shockwave can then be coupled into a medium surrounding the optical breakdown acoustic transducer via an acoustic outlet coupled to the vessel. The acoustic output of the optical breakdown acoustic transducer can be tuned by adjusting the properties of the optical source and/or the shape of the cavity containing the fluid. The optical breakdown acoustic transducer can be used for imaging, sensing, communication, and mechanical disruption.
(FR) Un transducteur acoustique de claquage optique peut générer des ondes acoustiques à largeur de bande élevée et amplitude élevée par l'intermédiaire d'un processus de claquage optique. Le transducteur acoustique de claquage optique peut comprendre un récipient ayant une cavité intérieure qui est sensiblement remplie d'un fluide et une source de lumière qui émet de la lumière. La lumière peut être dirigée à travers un élément optique qui concentre la lumière vers au moins un point focal situé à l'intérieur du fluide, de façon à causer un claquage optique et la génération d'une onde de choc acoustique. L'onde de choc acoustique peut ensuite être couplée dans un milieu entourant le transducteur acoustique de claquage optique par l'intermédiaire d'une sortie acoustique couplée au récipient. La sortie acoustique du transducteur acoustique de claquage optique peut être accordée par ajustement des propriétés de la source optique et/ou de la forme de la cavité contenant le fluide. Le transducteur acoustique de claquage optique peut être utilisé pour l'imagerie, la détection, la communication et la rupture mécanique.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)