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Optica Applicata

Optical surface devices for atomic and atom physics

Dobrosława Bartoszek-Bober, Jacek Fiutowski, T. Dohnalik, Tomasz Kawalec

Published Jan 1, 2010• 2 citations
OpenAlex

Abstract

The applications in basic science of optical surface devices for atoms are reviewed, with the emphasis on the optical dipole mirrors. The example of experimental realization of such a mirror constructed in our group is shortly presented. Some methods used in its characterization are shown.

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Interferometers are ubiquitous devices in optics, consisting of arrangements of totally reflective and semitransparent mirrors, fiber optics, detectors, etc . The smallest possible mirror consists of a single atom, and with recent advances in nanotechnology it is possible to fabricate them and couple them to transmission lines. This can be realized for example with superconducting qubits and superconducting coplanar waveguide resonators or with dipole emitters coupled to surface-plasmon nanowires. Based on a recent proposal [G S Paraoanu, Phys. Rev. A 82 , 023802 (2010)], here we give a brief overview of the two-atom Mach-Zender interferometer. Here we show that both the phase and the amplitude of the output field can be used to extract information about the phase difference between the two arms of the interferometer. Also, we point out that this device can be used as well in the reflection mode.
Interference with atomic and molecular matter waves is a rich branch of atomic physics and quantum optics. It started with atom diffraction from crystal surfaces and the separated oscillatory fields technique used in atomic clocks. Atom interferometry is now reaching maturity as a powerful art with many applications in modern science. In this review the basic tools for coherent atom optics are described including diffraction by nanostructures and laser light, three-grating interferometers, and double wells on atom chips. Scientific advances in a broad range of fields that have resulted from the application of atom interferometers are reviewed. These are grouped in three categories: (i) fundamental quantum science, (ii) precision metrology, and (iii) atomic and molecular physics. Although some experiments with Bose-Einstein condensates are included, the focus of the review is on linear matter wave optics, i.e., phenomena where each single atom interferes with itself.