Photoacoustic microscopy of single cells employing an intensity-modulated diode laser

Gregor Langer, Bianca Buchegger, Jaroslaw Jacak, Manoj Kumar Dasa, Thomas A. Klar, Thomas Berer

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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In this work, we employ frequency-domain photoacoustic microscopy to obtain photoacoustic images of labeled and unlabeled cells. The photoacoustic microscope is based on an intensity-modulated diode laser in combination with a focused piezo-composite transducer and allows imaging of labeled cells without severe photo-bleaching. We demonstrate that frequency-domain photoacoustic microscopy realized with a diode laser is capable of recording photoacoustic images of single cells with sub-μm resolution. As examples, we present images of undyed human red blood cells, stained human epithelial cells, and stained yeast cells.
Original languageEnglish
Title of host publicationProceedings of SPIE
Number of pages7
PublisherSPIE - International Society for Optical Engineering
Publication date2018
Article number104942L
Publication statusPublished - 2018
EventSPIE Photonics West 2018: SPIE BIOS: Design and Quality for Biomedical Technologies XI -
Duration: 27 Jan 2018 → …


ConferenceSPIE Photonics West 2018
Period27/01/2018 → …
SeriesProceedings of SPIE, the International Society for Optical Engineering


  • Photoacoustic microscope
  • Frequency-domain
  • Diode laser


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