Remote photoacoustic imaging on solid material using a two-wave mixing interferometer

Thomas Berer, Armin Hochreiner, Saeid Zamiri, Peter Burgholzer

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)


We report on remote and contactless photoacoustic imaging (PAI) for the inspection of solid materials using a twowave mixing interferometer. In this Letter, a semitransparent sample was excited with picosecond laser pulses. The local absorption of the electromagnetic radiation led to generation of broadband ultrasonic waves inside the sample. Ultrasonic waves arriving at the sample surface were detected utilizing a two-wave mixing interferometer. After data acquisition, the initial pressure distribution was reconstructed using a Fourier space synthetic aperture technique algorithm. We show the potential of PAI for the inspection of semitransparent solid materials.

Original languageEnglish
Pages (from-to)4151-4153
Number of pages3
JournalOptics Letters
Issue number24
Publication statusPublished - 15 Dec 2010


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