Temporal, matter-wave-dispersion talbot effect

L. Deng; E. W. Hagley; J. Denschlag; J. E. Simsarian; Mark Edwards; Charles W. Clark; K. Helmerson; S. L. Rolston; W. D. Phillips

doi:10.1103/PhysRevLett.83.5407

Temporal, matter-wave-dispersion talbot effect

L. Deng, E. W. Hagley, J. Denschlag, J. E. Simsarian, Mark Edwards, Charles W. Clark, K. Helmerson, S. L. Rolston, W. D. Phillips

Biochemistry, Chemistry & Physics

Research output: Contribution to journal › Article › peer-review

220 Scopus citations

Abstract

We analyze and experimentally demonstrate a new (temporal) Talbot effect, where a pulsed phase grating is applied to a cloud of cold atoms (Bose-Einstein condensate). In contrast to the usual (spatial) Talbot effect, our atoms gain kinetic energy when diffracted by the pulsed grating. The energy gain and the matter-wave-dispersion relation result in an exact (no paraxial approximation) Talbot effect where the initial wave front is reconstructed at multiples of a “Talbot time” T_T. We demonstrate the Talbot effect by applying a second pulsed phase grating after a variable delay. When this second grating is applied at even (odd) multiples of T_T/2, it doubles (cancels) the effect of the first pulsed grating.

Original language	English
Pages (from-to)	5407-5411
Number of pages	5
Journal	Physical Review Letters
Volume	83
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.83.5407
State	Published - Jan 1 1999

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General Physics and Astronomy

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title = "Temporal, matter-wave-dispersion talbot effect",

abstract = "We analyze and experimentally demonstrate a new (temporal) Talbot effect, where a pulsed phase grating is applied to a cloud of cold atoms (Bose-Einstein condensate). In contrast to the usual (spatial) Talbot effect, our atoms gain kinetic energy when diffracted by the pulsed grating. The energy gain and the matter-wave-dispersion relation result in an exact (no paraxial approximation) Talbot effect where the initial wave front is reconstructed at multiples of a “Talbot time” TT. We demonstrate the Talbot effect by applying a second pulsed phase grating after a variable delay. When this second grating is applied at even (odd) multiples of TT/2, it doubles (cancels) the effect of the first pulsed grating.",

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T1 - Temporal, matter-wave-dispersion talbot effect

AU - Deng, L.

AU - Hagley, E. W.

AU - Denschlag, J.

AU - Simsarian, J. E.

AU - Edwards, Mark

AU - Clark, Charles W.

AU - Helmerson, K.

AU - Rolston, S. L.

AU - Phillips, W. D.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - We analyze and experimentally demonstrate a new (temporal) Talbot effect, where a pulsed phase grating is applied to a cloud of cold atoms (Bose-Einstein condensate). In contrast to the usual (spatial) Talbot effect, our atoms gain kinetic energy when diffracted by the pulsed grating. The energy gain and the matter-wave-dispersion relation result in an exact (no paraxial approximation) Talbot effect where the initial wave front is reconstructed at multiples of a “Talbot time” TT. We demonstrate the Talbot effect by applying a second pulsed phase grating after a variable delay. When this second grating is applied at even (odd) multiples of TT/2, it doubles (cancels) the effect of the first pulsed grating.

AB - We analyze and experimentally demonstrate a new (temporal) Talbot effect, where a pulsed phase grating is applied to a cloud of cold atoms (Bose-Einstein condensate). In contrast to the usual (spatial) Talbot effect, our atoms gain kinetic energy when diffracted by the pulsed grating. The energy gain and the matter-wave-dispersion relation result in an exact (no paraxial approximation) Talbot effect where the initial wave front is reconstructed at multiples of a “Talbot time” TT. We demonstrate the Talbot effect by applying a second pulsed phase grating after a variable delay. When this second grating is applied at even (odd) multiples of TT/2, it doubles (cancels) the effect of the first pulsed grating.

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Temporal, matter-wave-dispersion talbot effect

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