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Description
  • We propose a method for measuring velocities of atoms or molecules in a gas phase based on time-resolved laser experiments. Two intensity gratings of electromagnetic field with variable time delay tau are created by interfering of four laser pulses. Using first-order perturbation theory, we show that such arrangement can be used for measuring particle velocities, which have an optical transition to a long-living excited state. It is shown that the optical Ramsey oscillations obtain a characteristic modulation that reflects the distribution of velocities.
  • We propose a method for measuring velocities of atoms or molecules in a gas phase based on time-resolved laser experiments. Two intensity gratings of electromagnetic field with variable time delay tau are created by interfering of four laser pulses. Using first-order perturbation theory, we show that such arrangement can be used for measuring particle velocities, which have an optical transition to a long-living excited state. It is shown that the optical Ramsey oscillations obtain a characteristic modulation that reflects the distribution of velocities. (en)
Title
  • Optical velocity meter based on Ramsey oscillations in a double-grating setup
  • Optical velocity meter based on Ramsey oscillations in a double-grating setup (en)
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  • Optical velocity meter based on Ramsey oscillations in a double-grating setup
  • Optical velocity meter based on Ramsey oscillations in a double-grating setup (en)
skos:notation
  • RIV/00216208:11320/14:10290102!RIV15-MSM-11320___
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  • 34757
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  • RIV/00216208:11320/14:10290102
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  • beam; atoms; deflection; temperature; spectroscopy; interference; fringes; velocimetry; supersonic flows; rydberg wave-packets (en)
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  • US - Spojené státy americké
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  • [D50C77E5F05A]
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  • Physical Review A - Atomic Molecular and Optical Physics
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  • 89
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  • Fregenal, D.
  • Hansen, J. P.
  • Kozák, Martin
  • Preclikova, J.
http://linked.open...ain/vavai/riv/wos
  • 000333990800009
issn
  • 1050-2947
number of pages
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  • 10.1103/PhysRevA.89.043406
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  • 11320
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