Atomic de Broglie microscope
（重定向自Nanoscope）
The resolution of optical microscopes is limited to a few hundred nanometers by the wave properties of the light.
The idea of imaging with atoms instead of light is widely discussed in the literature since the past century. Atom optics using neutral atoms instead of light could provide resolution as good as the electron microscope and be completely non-destructive, because short wavelengths on the order of a nanometer can be realized at low energy of the probing particles. "It follows that a helium microscope with nanometer resolution is possible. A helium atom microscope will be [a] unique non-destructive tool for reflection or transmission microscopy."