Optoacoustic imaging using thin polymer ́talon

Shai Ashkenazi, Yang Hou, Takashi Buma, Matthew O'Donnell

Research output: Contribution to journalArticlepeer-review

79 Scopus citations


Optical detection of ultrasound is a promising technique for high frequency imaging arrays. Detection resolution approaches the optical resolution, which can be on the order of the optical wavelength. We describe here an optical technique for ultrasound detection based on a thin (10 μm) Fabry-Perot ́talon optimized for high resolution imaging. The signal to noise ratio (SNR) approaches that of an ideal piezoelectric transducer over a 100 MHz bandwidth. Array functionality is demonstrated by scanning a probe beam along a line. Thermoelastic excitation was applied to generate acoustic waves in a test phantom containing a single "pointlike" source. An image of the source was reconstructed using signals acquired from the ́talon detector array.

Original languageEnglish (US)
Article number134102
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number13
StatePublished - Mar 28 2005


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