Thermoacoustic and photoacoustic sensing of temperature

Manojit Pramanik; Lihong V. Wang

doi:10.1117/1.3247155

1 September 2009 Thermoacoustic and photoacoustic sensing of temperature

Manojit Pramanik, Lihong V. Wang

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Journal of Biomedical Optics, Vol. 14, Issue 5, 054024 (September 2009). https://doi.org/10.1117/1.3247155

Abstract

We present a novel temperature-sensing technique usingthermoacoustic and photoacoustic measurements. This noninvasivemethod has been demonstrated using a tissue phantom to have hightemporal resolution and temperature sensitivity. Because both photoacousticand thermoacoustic signal amplitudes depend on the temperatureof the source object, the signal amplitudes can be used to monitorthe temperature. A temperature sensitivity of 0.15°C was obtained ata temporal resolution as short as 2 s, taking the average of 20 signals.The deep-tissue imaging capability of this technique can potentiallylead us to in vivo temperature monitoring in thermal or cryogenicapplications.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Manojit Pramanik and Lihong V. Wang "Thermoacoustic and photoacoustic sensing of temperature," Journal of Biomedical Optics 14(5), 054024 (1 September 2009). https://doi.org/10.1117/1.3247155

Published: 1 September 2009

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