Time-resolved Stark effect in rapidly varying fields

R. B. López-Martens; T. W. Schmidt; G. Roberts

doi:10.1007/s003400200839

Time-resolved Stark effect in rapidly varying fields

R. B. López-Martens
, T. W. Schmidt
, G. Roberts

University of Cambridge

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

Abstract

The cycle-averaged ac Stark effect associated with the A²Σ⁺v′ = 2 ← X²Π_1/2v′ = 0 two-photon absorption of NO at intensities between 7.7 and 15.2 TWcm^-2 has been characterized in real time through a synergic combination of bichromatic laser experiments and quantum-dynamics calculations. Measurements of the fluorescence emitted by the Rydberg A²Σ⁺v′ = 2 level as a function of time between Stark and probe components of a bichromatic field exhibit a characteristic evolution in temporal peak structure with Stark-field intensity, which is interpreted in terms of a time-dependent Floquet analysis of the laser-matter interaction. The experimental observations are consistent with a dynamic Stark shift of Δε_s(ω₁, ω₂) ≤ 0.23 eV of the optical transition at these intensities.

Original language	English
Pages (from-to)	577-581
Number of pages	5
Journal	Applied Physics B: Lasers and Optics
Volume	74
Issue number	6
DOIs	https://doi.org/10.1007/s003400200839
Publication status	Published - 1 Apr 2002
Externally published	Yes

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10.1007/s003400200839

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title = "Time-resolved Stark effect in rapidly varying fields",

abstract = "The cycle-averaged ac Stark effect associated with the A2Σ+v′ = 2 ← X2Π1/2v′ = 0 two-photon absorption of NO at intensities between 7.7 and 15.2 TWcm-2 has been characterized in real time through a synergic combination of bichromatic laser experiments and quantum-dynamics calculations. Measurements of the fluorescence emitted by the Rydberg A2Σ+v′ = 2 level as a function of time between Stark and probe components of a bichromatic field exhibit a characteristic evolution in temporal peak structure with Stark-field intensity, which is interpreted in terms of a time-dependent Floquet analysis of the laser-matter interaction. The experimental observations are consistent with a dynamic Stark shift of Δεs(ω1, ω2) ≤ 0.23 eV of the optical transition at these intensities.",

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AU - López-Martens, R. B.

AU - Schmidt, T. W.

AU - Roberts, G.

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N2 - The cycle-averaged ac Stark effect associated with the A2Σ+v′ = 2 ← X2Π1/2v′ = 0 two-photon absorption of NO at intensities between 7.7 and 15.2 TWcm-2 has been characterized in real time through a synergic combination of bichromatic laser experiments and quantum-dynamics calculations. Measurements of the fluorescence emitted by the Rydberg A2Σ+v′ = 2 level as a function of time between Stark and probe components of a bichromatic field exhibit a characteristic evolution in temporal peak structure with Stark-field intensity, which is interpreted in terms of a time-dependent Floquet analysis of the laser-matter interaction. The experimental observations are consistent with a dynamic Stark shift of Δεs(ω1, ω2) ≤ 0.23 eV of the optical transition at these intensities.

AB - The cycle-averaged ac Stark effect associated with the A2Σ+v′ = 2 ← X2Π1/2v′ = 0 two-photon absorption of NO at intensities between 7.7 and 15.2 TWcm-2 has been characterized in real time through a synergic combination of bichromatic laser experiments and quantum-dynamics calculations. Measurements of the fluorescence emitted by the Rydberg A2Σ+v′ = 2 level as a function of time between Stark and probe components of a bichromatic field exhibit a characteristic evolution in temporal peak structure with Stark-field intensity, which is interpreted in terms of a time-dependent Floquet analysis of the laser-matter interaction. The experimental observations are consistent with a dynamic Stark shift of Δεs(ω1, ω2) ≤ 0.23 eV of the optical transition at these intensities.

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M3 - Article

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EP - 581

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

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ER -

Time-resolved Stark effect in rapidly varying fields

Abstract

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