dorsal/arxiv
View SchemaAnalysis of a Material Phase Shifting Element in an Atom Interferometer
| Authors | John D. Perreault, Alexander D. Cronin |
|---|---|
| Categories | |
| ArXiv ID | physics/0506090 |
| URL | https://arxiv.org/abs/physics/0506090 |
| DOI | 10.1088/1742-6596/19/1/024 |
Abstract
The interaction of Na atoms with a surface was probed by inserting a nanofabricated material grating into one arm of an atom interferometer (IFM). This technique permits a direct measurement of the change in phase and coherence of matter waves as they pass within 25 nm of the grating bar surface. The practical concerns and challenges of making such a measurement are discussed here. Interference of spurious diffraction orders, IFM path overlap, and the partial obscuration of IFM beams are all important aspects of this experiment. The systematic effects that contribute to the measured phase shift and contrast are discussed.
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"abstract": "The interaction of Na atoms with a surface was probed by inserting a\nnanofabricated material grating into one arm of an atom interferometer (IFM).\nThis technique permits a direct measurement of the change in phase and\ncoherence of matter waves as they pass within 25 nm of the grating bar surface.\nThe practical concerns and challenges of making such a measurement are\ndiscussed here. Interference of spurious diffraction orders, IFM path overlap,\nand the partial obscuration of IFM beams are all important aspects of this\nexperiment. The systematic effects that contribute to the measured phase shift\nand contrast are discussed.",
"arxiv_id": "physics/0506090",
"authors": [
"John D. Perreault",
"Alexander D. Cronin"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1088/1742-6596/19/1/024",
"title": "Analysis of a Material Phase Shifting Element in an Atom Interferometer",
"url": "https://arxiv.org/abs/physics/0506090"
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