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Wide-field multiphoton imaging with TRAFIX
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Paper Abstract

Optical approaches have broadened their impact in recent years with innovations in both wide-field and super- resolution imaging, which now underpin biological and medical sciences. Whilst these advances have been remarkable, to date, the ongoing challenge in optical imaging is to penetrate deeper. TRAFIX is an innovative approach that combines temporal focusing illumination with single-pixel detection to obtain wide-field multi- photon images of fluorescent microscopic samples deep through scattering media without correction. It has been shown that it can image through biological samples such as rat brain or human colon tissue up to a depth of seven scattering mean-free-path lengths. Comparisons of TRAFIX with standard point-scanning two-photon microscopy show that the former can yield a five-fold higher signal-to-background ratio while significantly reducing photobleaching of the specimen. Here, we show the first preliminary demonstration of TRAFIX with three-photon excitation imaging dielectric beads. We discuss the advantages of the TRAFIX approach combined with compressive sensing for biomedicine.

Paper Details

Date Published: 22 February 2019
PDF: 8 pages
Proc. SPIE 10882, Multiphoton Microscopy in the Biomedical Sciences XIX, 108821G (22 February 2019); doi: 10.1117/12.2508373
Show Author Affiliations
Adrià Escobet-Montalbán, Univ. of St. Andrews (United Kingdom)
Philip Wijesinghe, Univ. of St. Andrews (United Kingdom)
Mingzhou Chen, Univ. of St. Andrews (United Kingdom)
Kishan Dholakia, Univ. of St. Andrews (United Kingdom)


Published in SPIE Proceedings Vol. 10882:
Multiphoton Microscopy in the Biomedical Sciences XIX
Ammasi Periasamy; Peter T. C. So; Karsten König, Editor(s)

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