info:eu-repo/semantics/article
Optical velocity meter based on Ramsey oscillations in a double-grating setup
Fecha
2014-04Registro en:
Preclikova, J.; Kozák, M.; Fregenal, Daniel Eduardo; Hansen, J. P.; Optical velocity meter based on Ramsey oscillations in a double-grating setup; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 4; 4-2014; 1-5; 043406
1050-2947
CONICET Digital
CONICET
Autor
Preclikova, J.
Kozák, M.
Fregenal, Daniel Eduardo
Hansen, J. P.
Resumen
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
τ
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.