Presentation + Paper
16 March 2023 Ultrafast phase imaging of propagating current flows in myelinated axons and electromagnetic pulses in dielectrics
Author Affiliations +
Abstract
Visualization of the spatiotemporal dynamics of propagation is fundamental to understanding dynamic processes ranging from action potentials to electromagnetic pulses, the two ultrafast processes in biology and physics, respectively. Here, we demonstrate differentially enhanced compressed ultrafast photography to directly visualize propagations of passive current flows at approximately 100 m/s along internodes from Xenopus laevis sciatic nerves and of electromagnetic pulses at approximately 5×107 m/s through lithium niobate. The spatiotemporal dynamics of both propagation processes are consistent with the results from computational models, demonstrating that our method can span these two extreme timescales while maintaining high phase sensitivity.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yide Zhang, Binglin Shen, Tong Wu, Jerry Zhao, Joseph C. Jing, Peng Wang, Kanomi Sasaki-Capela, William G. Dunphy, David Garrett, Konstantin Maslov, Weiwei Wang, and Lihong V. Wang "Ultrafast phase imaging of propagating current flows in myelinated axons and electromagnetic pulses in dielectrics", Proc. SPIE 12390, High-Speed Biomedical Imaging and Spectroscopy VIII, 1239008 (16 March 2023); https://doi.org/10.1117/12.2653137
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KEYWORDS
Axons

Ultrafast phenomena

Ultrafast imaging

Visualization

Biological imaging

Electromagnetism

Imaging systems

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