Patent ID: 7196788

Claim:
A photosensitive waveguide for locating and identifying a fluorophore-labeled cell by scanning light microscopy using two non-parallel light beams, the photosensitive waveguide comprising: a first set of parallel optical polymer fibers fused in perpendicular orientation to a second set of parallel optical polymer fibers, each fiber being composed of a core enclosed by a cladding; wherein a first light source is positioned to propagate guided light along each fiber of the first set of fibers and first light detector is positioned to measure the transmitted light guided through each of the first set of fibers; and a second light source is positioned to propagate guided light along each fiber of the second set of fibers and second light detector is positioned to measure the transmitted light guided through each of the second set of fibers; wherein the fiber core and cladding comprise a photosensitive substance for guiding light beams to and from a light emitting fluorophore-labeled cell; the light beams being detected at positions determining the cell location and identity in a measurement area.