Optical techniques articles within Nature Communications

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• Article
  06 March 2012 | Open Access

  Ptychographic electron microscopy using high-angle dark-field scattering for sub-nanometre resolution imaging

  Diffractive imaging can deliver wavelength-scale resolution with X-rays, although its use with electrons is hampered by experimental constraints. By applying ptychographic methods to transmission electron microscopy, Humphryet al. demonstrate sub-nanometre resolution using low-energy electrons.

  • M.J. Humphry
  • , B. Kraus
  •  & J.M. Rodenburg

• Article | 17 January 2012

  Propagation stability of self-reconstructing Bessel beams enables contrast-enhanced imaging in thick media

  Self-reconstructing laser beams can propagate deep into thick media, making them ideal for light-sheet microscopy of organic matter. By considering the rings of self-reconstructing Bessel beams, Fahrbach and Rohrbach present a technique for improving the contrast and resolution of this approach.

  • Florian O. Fahrbach
  •  & Alexander Rohrbach