Optical microscopy at sub-0.1 m resolution: Fiction or vision?

Shorter wavelengths and/or increasing the numerical aperture lead to higher resolution. By avoidance of classical immersion optics and by way of so-called superresolution, an improvement of resolution about a factor 2–2.5 can be achieved as compared with the microscopes of today.

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W. Vollrath
Leica Microsystems Wetzlar GmbH, Germany
Scientific and Technical Information
Edition CDR 2, pp. 46–64
April 1999