6533b858fe1ef96bd12b5811

RESEARCH PRODUCT

Optical-sectioning improvement in two-color excitation scanning microscopy

Isabel EscobarManuel Martínez-corralC. Ibáñez-lópezGenaro Saavedra

subject

HistologyMaterials scienceMicroscopeOptical sectioningbusiness.industrylaw.inventionMedical Laboratory TechnologyWavelengthOpticsTwo-photon excitation microscopylawLight sheet fluorescence microscopyMicroscopyFluorescence microscopeAnatomybusinessInstrumentationExcitation

description

We present a new beam-shaping technique for two-color excitation fluorescence microscopy. We show that by simply inserting a properly designed shaded-ring filter in the illumination beam of smaller wavelength, it is possible to improve the effective optical sectioning capacity of such microscopes by 23%. Such an improvement is obtained at the expense of only a very small increasing of the overall energy in the point-spread-function sidelobes. The performance of this technique is illustrated by a numerical imaging simulation.

https://doi.org/10.1002/jemt.20073