A photoacoustic microscopy system using MEMS and fibre tip transducers for all-optical control

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Abstract

A 3D photoacoustic microscopy (PAM) system is presented and characterized, using optical MEMS and fibre tip transducers as active elements to provide all-optical positioning and read-out. The excitation beam position is controlled using an electrostatically actuated 2-axis MEMS scanner. This allows for fast 3D scanning without motion-induced artefacts caused by stage scanning, and selective imaging of regions of interest. A 20 MHz fibre tip transducer is used for acoustic detection, which allows a variety of sample holders to be used including common approaches such as multi-well plates and petri-dishes.

Original languageEnglish
Article number1196018
JournalProceedings of SPIE
Volume11960
Early online date22 Jan 2022
DOIs
Publication statusPublished - 3 Mar 2022
EventSPIE Photonics West 2022 - San Francisco, United States
Duration: 22 Jan 202227 Jan 2022

Keywords

  • MEMS
  • photoacoustic microscopy
  • fibre tip transducer
  • 3D scanning
  • Microelectromechanical Systems

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