FIG. 8.
Schematic of the experimental setup of point-scanning super-resolution microscopy based on virtually structured detection. The focal lengths of lenses L1, L2, and L3 are 200, 40, and 150 mm, respectively. BS, beam splitter; CCD, charge-coupled device; CO: collimator; OB, objective; SLD, superluminescent laser diode. (From Ref. 86. Reprinted with permission of the Optical Society (OSA).)