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Multiple beam atom interferometer: theory and experiment.

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Title: Multiple beam atom interferometer: theory and experiment.
Authors: Weitz, M., Heupel, T., Hänsch, T.W.
Source: Applied Physics B: Lasers & Optics. 1997, Vol. 65 Issue 6, p713. 12p. 7 Color Photographs.
Subjects: Interferometers, Ultrashort laser pulses, Neutral beams
Abstract: We first give a detailed account of the theory of atom interferometers based on a sequence of laser pulses projecting the atomic wave packets onto a spatially separating dark superposition state. We then describe the experimental realization of a multiple beam atom interferometer based on this method. In our experiment, we observe an interference signal that shows the sharply peaked Airy-function like pattern characteristic for multiple beam interference. Besides this fringe sharpening effect, we observe a further significant difference compared to the signal of a conventional two-beam atom interferometer. When the time between the beamsplitting pulses is varied, we observe collapse and revival of the fringe pattern, which is caused by a recoil phase shift increasing quadratically with the transverse atomic momentum. [ABSTRACT FROM AUTHOR]
Copyright of Applied Physics B: Lasers & Optics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Multiple beam atom interferometer: theory and experiment.
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  Data: <searchLink fieldCode="AR" term="%22Weitz%2C+M%2E%22">Weitz, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Heupel%2C+T%2E%22">Heupel, T.</searchLink><br /><searchLink fieldCode="AR" term="%22Hänsch%2C+T%2EW%2E%22">Hänsch, T.W.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Physics+B%3A+Lasers+%26+Optics%22">Applied Physics B: Lasers & Optics</searchLink>. 1997, Vol. 65 Issue 6, p713. 12p. 7 Color Photographs.
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  Data: <searchLink fieldCode="DE" term="%22Interferometers%22">Interferometers</searchLink><br /><searchLink fieldCode="DE" term="%22Ultrashort+laser+pulses%22">Ultrashort laser pulses</searchLink><br /><searchLink fieldCode="DE" term="%22Neutral+beams%22">Neutral beams</searchLink>
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  Data: We first give a detailed account of the theory of atom interferometers based on a sequence of laser pulses projecting the atomic wave packets onto a spatially separating dark superposition state. We then describe the experimental realization of a multiple beam atom interferometer based on this method. In our experiment, we observe an interference signal that shows the sharply peaked Airy-function like pattern characteristic for multiple beam interference. Besides this fringe sharpening effect, we observe a further significant difference compared to the signal of a conventional two-beam atom interferometer. When the time between the beamsplitting pulses is varied, we observe collapse and revival of the fringe pattern, which is caused by a recoil phase shift increasing quadratically with the transverse atomic momentum. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Applied Physics B: Lasers & Optics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s003400050338
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      – SubjectFull: Ultrashort laser pulses
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      – SubjectFull: Neutral beams
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      – TitleFull: Multiple beam atom interferometer: theory and experiment.
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              Text: 1997
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