X-ray parametric down-conversion in the Langevin regime

S. Shwartz; R. N. Coffee; J. M. Feldkamp; Y. Feng; J. B. Hastings; G. Y. Yin; S. E. Harris

doi:10.1103/PhysRevLett.109.013602

X-ray parametric down-conversion in the Langevin regime

S. Shwartz, R. N. Coffee, J. M. Feldkamp, Y. Feng, J. B. Hastings, G. Y. Yin, S. E. Harris

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

Abstract

We experimentally and theoretically study the coincidence count rate for down-converted x-ray photons. Because of photoionization, parametric down-conversion at x-ray wavelengths generally involves loss and the theoretical description requires a Langevin approach. By working in a transmission geometry (Laue) rather than in the Bragg geometry of previous experiments, we obtain an improvement in the signal-to-noise ratio of 12.5, and find agreement between experiment and theory.

Original language	English
Article number	013602
Journal	Physical Review Letters
Volume	109
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.109.013602
State	Published - 6 Jul 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.109.013602

Cite this

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title = "X-ray parametric down-conversion in the Langevin regime",

abstract = "We experimentally and theoretically study the coincidence count rate for down-converted x-ray photons. Because of photoionization, parametric down-conversion at x-ray wavelengths generally involves loss and the theoretical description requires a Langevin approach. By working in a transmission geometry (Laue) rather than in the Bragg geometry of previous experiments, we obtain an improvement in the signal-to-noise ratio of 12.5, and find agreement between experiment and theory.",

author = "S. Shwartz and Coffee, \{R. N.\} and Feldkamp, \{J. M.\} and Y. Feng and Hastings, \{J. B.\} and Yin, \{G. Y.\} and Harris, \{S. E.\}",

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doi = "10.1103/PhysRevLett.109.013602",

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AU - Coffee, R. N.

AU - Feldkamp, J. M.

AU - Feng, Y.

AU - Hastings, J. B.

AU - Yin, G. Y.

AU - Harris, S. E.

PY - 2012/7/6

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N2 - We experimentally and theoretically study the coincidence count rate for down-converted x-ray photons. Because of photoionization, parametric down-conversion at x-ray wavelengths generally involves loss and the theoretical description requires a Langevin approach. By working in a transmission geometry (Laue) rather than in the Bragg geometry of previous experiments, we obtain an improvement in the signal-to-noise ratio of 12.5, and find agreement between experiment and theory.

AB - We experimentally and theoretically study the coincidence count rate for down-converted x-ray photons. Because of photoionization, parametric down-conversion at x-ray wavelengths generally involves loss and the theoretical description requires a Langevin approach. By working in a transmission geometry (Laue) rather than in the Bragg geometry of previous experiments, we obtain an improvement in the signal-to-noise ratio of 12.5, and find agreement between experiment and theory.

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DO - 10.1103/PhysRevLett.109.013602

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JO - Physical Review Letters

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X-ray parametric down-conversion in the Langevin regime

Abstract

All Science Journal Classification (ASJC) codes

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