NDLI: A novel laser ultrasound transducer using candle soot carbon nanoparticles

Content Provider	IEEE Xplore Digital Library
Author	Wei-Yi Chang Jinwook Kim Sibo Li Wenbin Huang Xiaoning Jiang
Copyright Year	2015
Description	Author affiliation: Dept. of Mech. & Aerosp. Eng., North Carolina State Univ., Raleigh, NC, USA (Wei-Yi Chang; Jinwook Kim; Sibo Li; Wenbin Huang; Xiaoning Jiang)
Abstract	Laser ultrasound provides a useful method to generate high frequency, broadband and high intensity acoustic waves. In this study, we demonstrated a novel optoacoustic transducer with high-energy conversion efficiency by using candle soot nanoparticles polydimethylsiloxane (CSPs-PDMS) composite. Carbon nanoparticles are used because of their excellent properties of light absorption and heat transfer. The mean diameter of collected candle soot carbon nanoparticles is about 40 nm, and the light absorption ratio at 532 nm wavelength is up to 96.24%. The prototyped CSPs-PDMS composite laser ultrasound transducer was excited by laser pulses, and the acoustic beam profile was measured and compared with Field II simulation results. Energy conversion coefficient and -6 dB frequency bandwidth of CSPs-PDMS composite laser ultrasound transducer were measured to be 4.41 × $10^{-3}$ and 21 MHz, respectively. The unprecedented laser ultrasound transduction performance using CSNPs-PDMS nano-composites is promising for a broad range of ultrasound therapy and non-destructively testing applications.
Starting Page	1243
Ending Page	1246
File Size	892897
Page Count	4
File Format	PDF
e-ISBN	9781467381567
DOI	10.1109/NANO.2015.7388855
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-27
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic imaging Acoustics Acoustic measurements Transducers Measurement by laser beam Frequency measurement Acoustic beams nano-particles composite candle soot optoacoustic broadband ultrasound high frequency ultrasound
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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