Cheng Chin - Super-resolution microscopy of cold atoms in optical lattices - 2021/02/15
Автор: Leinweber Institute for Theoretical Physics
Загружено: 2021-02-15
Просмотров: 422
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Affiliation: James Franck Institute, Enrico Fermi Institute and Department of Physics, University of Chicago
Abstract: Super-resolution microscopy has revolutionized the fields of chemistry and biology by resolving features at the molecular level. With cold atoms, such a scheme can be applied to the length scale of atomic wavefunction and to perform quantum control. Here we report super-resolution imaging based on nonlinear response of optical pumping. With this technique the atomic density distribution can be imaged with a half-width-at-half-maximum resolution of 16(2) nm and a localization precision below 0.5 nm. The short optical pumping pulse of 1.4 us enables us to resolve fast atomic motion in the lattice. A surprising application of our scheme is the emergence of moiré patterns on the atomic cloud, which we show to be immensely magnified images of the atomic cloud.
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