Presentation
6 March 2020 Photoacoustic and fluorescent microscopy through a multimode fiber by use of optical wavefront shaping (Conference Presentation)
Author Affiliations +
Abstract
Many applications of microendoscopy, including brain imaging, requires minimally invasive devices to minimize damage during insertion in the tissue. Here we present a minimally-invasive endoscope based on a multimode fiber that combines photoacoustic and fluorescence sensing. By learning the transmission matrix during a prior calibration step, a focused spot can be produced and raster-scanned over a sample at the distal tip of the fiber by use of a spatial light modulator. We demonstrate that our setup provides both photoacoustic and fluorescence microscopic images of test samples in vitro (fluorescent beads and red blood cells) through the same fiber.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sylvain Mezil, Irène Wang, Philippe Moreau, Théodore Remark, Antonio M. Caravaca-Aguirre, and Emmanuel Bossy "Photoacoustic and fluorescent microscopy through a multimode fiber by use of optical wavefront shaping (Conference Presentation)", Proc. SPIE 11240, Photons Plus Ultrasound: Imaging and Sensing 2020, 1124027 (6 March 2020); https://doi.org/10.1117/12.2544967
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KEYWORDS
Multimode fibers

Photoacoustic spectroscopy

Wavefronts

In vitro testing

Microscopy

Tissue optics

Blood

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