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Measurement of the separation between atoms beyond diffraction limit

Jun-Tao Chang·Joerg Evers·Marlan O. Scully·M. Suhail Zubairy
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Abstract

Precision measurement of small separations between two atoms or molecules has been of interest since the early days of science. Here, we discuss a scheme which yields spatial information on a system of two identical atoms placed in a standing wave laser field. The information is extracted from the collective resonance fluorescence spectrum, relying entirely on far-field imaging techniques. Both the interatomic separation and the positions of the two particles can be measured with fractional-wavelength precision over a wide range of distances from bout lambda/550 to lambda/2.

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Jun-Tao Chang, Joerg Evers, Marlan O. Scully, M. Suhail Zubairy. 2006-03-13. Measurement of the separation between atoms beyond diffraction limit. https://doi.org/10.1103/physreva.73.031803

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