Characterization of materials with optically shaped acoustic waveforms

Choi, Jaime D.; Paxton, Benjamin; Feurer, Thomas; Yamaguchi, Masashi; Nelson, Keith A.

Title: Characterization of materials with optically shaped acoustic waveforms

Patent · Tue Jun 17 00:00:00 EDT 2008

OSTI ID:1531559

Choi, Jaime D.; Paxton, Benjamin; Feurer, Thomas; Yamaguchi, Masashi; Nelson, Keith A.

A method for characterizing one or more properties of a sample using acoustic waveforms is disclosed, and comprises directing a sequence of at least three optical pulses to the sample to generate an acoustic response in the sample at a frequency corresponding to the pulse sequence, varying the timing of one or more of the pulses in the sequence to vary the frequency of the acoustic response in the sample, and measuring the strength of the acoustic response as a function of the varied frequency to determine information about the sample.

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Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-00ER15087

Assignee:: Massachusetts Institute of Technology (Cambridge, MA)

Patent Number(s):: 7,387,027

Application Number:: 11/186,401

OSTI ID:: 1531559

Resource Relation:: Patent File Date: 2005-07-21

Country of Publication:: United States

Language:: English

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Cited By (5)

Acoustic monitoring method for additive manufacturing processes Gold, Scott Alan; Spears, Thomas Graham https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9989495 US Patent Document 9,989,495	patent	June 2018
Highly fault-tolerant method for evaluating phase signals Steinlechner, Siegbert; Wenzler, Axel https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7751997 US Patent Document 7,751,997	patent	July 2010
Method and device for examining a laser system Fösel, Matthias; Kittelmann, Olaf; Vogler, Klaus https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8665428 US Patent Document 8,665,428	patent	March 2014
Photoacoustic monitoring technique with noise reduction Kang, DongYel; Li, Youzhi; Huang, Qiaojian https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9380981 US Patent Document 9,380,981	patent	July 2016
Mid-IR laser for generation of ultrasound using a CO2 laser and harmonic generation Drake, Jr., Thomas E.; Dubois, Marc; Lorraine, Peter William https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8113056 US Patent Document 8,113,056	patent	February 2012

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