Wavelength dependence of electron localization of H_2~+ and its isotopomers in the UV-pump-probe scheme |
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Institution: | 1.School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;2.Key Laboratory of Special Function Materials and Structure Design (Ministry of Education), Lanzhou University, Lanzhou 730000, China |
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Abstract: | The wavelength dependence of electron localization of H2+ and its isotopomers in the ultraviolet pump-probe scheme is investigated by numerically solving the time-dependent Schrödinger equation. By combining with a semiclassical method, an effective analytical formula expressed in the adiabatic representation is established to describe the localization probability with several zero crossings. A stable zone with respect to the laser intensity and carrier envelope phase is found at a relatively long probe wavelength. Finally, the critical probe wavelengths to reach at the stable zone are derived by using the three-dimensional model. Slower nuclear motion of heavier isotopomers leads to a longer critical wavelength. |
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Keywords: | strong field physics electron localization molecular dissociation pump-probe |
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