title: Adaptive optics for deeper imaging of biological samples.
abstract: Optical microscopy has been a cornerstone of life science investigations since its first practical application around 400 years ago with the goal being subcellular resolution, three-dimensional images, at depth, in living samples. Nonlinear microscopy brought this dream a step closer, but as one images more deeply the material through which you image can greatly distort the view. By using optical devices, originally developed for astronomy, whose optical properties can be changed in real time, active compensation for sample-induced aberrations is possible. Submicron resolution images are now routinely recorded from depths over 1mm into tissue. Such active optical elements can also be used to keep conventional microscopes, both confocal and widefield, in optimal alignment.
authors.affiliation: Centre for Advanced Instrumentation, Department of Physics, University of Durham, Durham, UK. j.m.girkin@durham.ac.uk
authors.forename: John M
authors.initials: JM
authors.lastname: Girkin
authors.forename: Simon
authors.initials: S
authors.lastname: Poland
authors.forename: Amanda J
authors.initials: AJ
authors.lastname: Wright
mesh_terms: D003952:Diagnostic Imaging / Q000295:instrumentation / Q000379:methods*; D008853:Microscopy; D008962:Models, Theoretical; D055096:Optical Devices