Measurements of the time evolution of coherent excitation

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Show simple item record Camp, Howard Alan 2005-05-09T21:00:34Z 2005-05-09T21:00:34Z 2005-05-09T21:00:34Z
dc.description.abstract In recent years, coherent excitation techniques have focused on the ability to efficiently prepare atomic or molecular systems into a selected state. Such population control plays a key role in cutting-edge research taking place today, such as in the areas of quantum information and laser-controlled chemical reactions. Stimulated Raman adiabatic passage (STIRAP) is a widely-used coherent excitation technique that provides a relatively robust control mechanism for efficiently exciting a target population into a desired state. While the technique is well proven, current experimental techniques yield little information on the population dynamics taking place throughout the excitation process, and experimentalists rely solely on final excited-state measurements to determine the efficiency of population transfer. This dissertation presents a unique diagnostic tool to measure multilevel coherent population transfer on a short (nanosecond) timescale. The technique described here uses magneto-optical trap recoil ion momentum spectroscopy (MOTRIMS) as a noninvasive probe of a coherently-controlled system. It provides extremely detailed information about the excitation process, and highlights some important characteristics seen in excited populations that would otherwise be misleading or completely overlooked if one were to use more traditional diagnostic techniques. This dissertation discusses both the theoretical and experimental results applied to three-level coherently excited target populations of Rb-87. en
dc.description.sponsorship Chemical Sciences; Geosciences and Biosciences Division; Office of Basic Energy Sciences; Office of Science; U.S. Department of Energy en
dc.format.extent 16348562 bytes
dc.format.extent 28073381 bytes
dc.format.extent 21859 bytes
dc.format.mimetype application/pdf
dc.format.mimetype application/octet-stream
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Kansas State University en
dc.subject Coherent excitation en
dc.subject Time evolution en
dc.subject STIRAP en
dc.subject Stimulated Raman adiabatic passage en
dc.subject MOTRIMS en
dc.subject Magneto-optical trap recoil ion momentum spectroscopy en
dc.subject COLTRIMS en
dc.title Measurements of the time evolution of coherent excitation en
dc.type Dissertation en Doctor of Philosophy en
dc.description.level Doctoral en
dc.description.department Department of Physics en
dc.description.advisor B.D. DePaola en
dc.subject.umi Physics, Atomic (0748) en
dc.subject.umi Physics, Molecular (0609) en
dc.subject.umi Physics, Optics (0752) en 2005 en May en

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