Adaptive optics improves multiphoton super-resolution imaging.

Zheng, Wei; Wu, Yicong; Winter, Peter; Fischer, Robert; Nogare, Damian Dalle; Hong, Amy; McCormick, Chad; Christensen, Ryan et al. · Nat Methods · 2017

basic_science · Level V

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Abstract

We improve multiphoton structured illumination microscopy using a nonlinear guide star to determine optical aberrations and a deformable mirror to correct them. We demonstrate our method on bead phantoms, cells in collagen gels, nematode larvae and embryos, Drosophila brain, and zebrafish embryos. Peak intensity is increased (up to 40-fold) and resolution recovered (up to 176 ± 10 nm laterally, 729 ± 39 nm axially) at depths ∼250 μm from the coverslip surface.

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