B. Richards and E. Wolf, “Electromagnetic Diffraction in Optical Systems I. An Integral Representation of the Image Field,” Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 253, No. 1274, pp. 358-379. doi:10.1098/rspa.1959.0200

has been cited by the following article:

• TITLE: A Low Cost and Versatile STED Superresolution Fluorescent Microscope

  AUTHORS: Daniel McBride, Chin Su, Jun Kameoka, Stanislav Vitha

  KEYWORDS: Stimulated Emission-Depletion Microscopy; STED

  JOURNAL NAME: Modern Instrumentation, Vol.2 No.3, July 12, 2013

  ABSTRACT: A versatile and inexpensive super-resolution fluorescent microscope that functions as easily as a conventional confocal microscope is described. Components of the microscope were designed on a platform which was placed atop a surplus microscope frame. All optical components and equipments used are given. The excitation and depletion beams are extracted from a compact low-cost supercontinuum light source. The focal spot of the depletion beam at the focal plane is studied and imaged by a 100 nm aperture near-field fiber tip. The collinear excitation and depletion beam focused by a 0.9 numerical aperture microscope objective produce a 90 nm lateral super-resolution as verified by imaging 100 nm diameter fluorescent beads.