CIUSSS Capitale nationale logo

Wide-field multiphoton imaging of cellular dynamics in thick tissue by temporal focusing and patterned illumination.

Publication Type:

Journal Article

Source:

Biomed Opt Express, Volume 2, Issue 3, p.696-704 (2011)

Abstract:

<p>Wide-field temporal focusing is a novel technique that provides optical sectioning for imaging without the need for beam scanning. However, illuminating over large areas greatly reduces the photon density which limits the technique applicability to small regions, precluding functional imaging of cellular networks. Here we present a strategy that combines beam shaping and temporal focusing of amplified pulses (>1 µJ/pulse) for fast imaging of cells from the central nervous system in acute slices. Multiphoton video-rate imaging over total areas as wide as 4800 µm(2) with an optical sectioning under 10 µm at 800 nm is achieved with our setup, leading to imaging of calcium dynamics of multiple cells simultaneously in thick tissue.</p>

Funding / Support / Partners

logo FRQ-S logo ctrn logo fci logo cihr irsc logo nserc logo MESISentinelle nord