4.6 Article

Strong-field two-photon transition by phase shaping

Journal

PHYSICAL REVIEW A
Volume 82, Issue 2, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.82.023408

Keywords

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Funding

  1. Ministry of Education, Science and Technology [2009-0090843]
  2. Marie Curie Initial Training Network [CA-ITN-214962-FASTQUAST]
  3. French Agence Nationale de la Recherche [CoMoC]
  4. National Research Foundation of Korea [2009-0090843] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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We demonstrate the ultrafast coherent control of a nonlinear two-photon absorption in a dynamically shifted energy level structure. We use a spectrotemporal laser-pulse shaping that is programed to preserve the resonant absorption condition during the intense laser-field interaction. Experiments carried out in the strong-field regime of two-photon absorption in the ground state of atomic cesium reveal that the analytically obtained offset and curvature of a laser spectrum compensate the effect of both static and dynamic energy shifts of the given light-atom interaction.

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