title: Chromatically-corrected, high-efficiency, multi-colour, multi-plane 3D imaging.
abstract: It is shown that grisms, a grating and prism combination, are a simple way to achieve chromatic control in 3D multi-plane imaging. A pair of grisms, whose separation can be varied, provide a collimated beam with a tuneable chromatic shear from a collimated polychromatic input. This simple control permits the correction of chromatic smearing in 3D imaging using off-axis Fresnel zone plates and improved control of the axial profile of a focussed spot in multi-photon experiments.
authors.affiliation: Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, 230027, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Feng
authors.forename: Paul A
authors.initials: PA
authors.lastname: Dalgarno
authors.forename: David
authors.initials: D
authors.lastname: Lee
authors.forename: Yi
authors.initials: Y
authors.lastname: Yang
authors.forename: Robert R
authors.initials: RR
authors.lastname: Thomson
authors.forename: Alan H
authors.initials: AH
authors.lastname: Greenaway
mesh_terms: D000465:Algorithms; D016477:Artifacts; D003124:Colorimetry / Q000295:instrumentation*; D007089:Image Enhancement / Q000295:instrumentation; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity