Fiber endface photoacoustic generator for quantitative photoacoustic tomography

Guang Yang, Hengbo Huang, Hongbo Luo, Sitai Kou, Eghbal Amidi, Samuel Achilefu, Quing Zhu

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We demonstrate a novel fiber endface photoacoustic (PA) generator using infrared (IR) 144 laser dye dispersed within an ultraviolet adhesive. The generator provides a wide acoustic bandwidth in the transducer frequency range of 2-7 MHz, high thermal conversion efficiency (>90%), good PA signal controllability (well-controlled IR 144 concentration), and high feasibility (simple procedures). Through a series of experimental validations, we show that this fiber-based endface PA generator can be a useful tool for a broad range of biomedical applications such as calibrating the local absorption coefficient of biological tissue for quantitative PA tomography.

Original languageEnglish
Pages (from-to)2706-2709
Number of pages4
JournalOptics Letters
Issue number11
StatePublished - Jun 1 2021


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