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Nayfeh, Munir H. Ng, Kwan Lam 2011-05-07T12:03:53Z 2011-05-07T12:03:53Z 10000-01-01 1990 The photoionization spectrum of highly excited hydrogen atoms in the energy range between E = 0 and E = E$\sb{\rm c}$ ionization thresholds is examined in the presence of a strong dc electric field. Atomic hydrogen is excited from the ground state via a three-photon process to high-lying excited states. Detailed experimental studies are made of the various properties of the resonant structures, and the results are compared to numerical calculations. It is found that the external electric field can be used to manipulate, control, and design specific atomic structures. These resonant structures are nearly one-dimensional and whose electronic distributions are highly extended along the field, and which may have enormous electric dipole moments. Such one-dimensional hydrogen atoms are ideal tools for studying a number of physical phenomena and applications. Made available in DSpace on 2011-05-07T12:03:53Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9114362.pdf: 4011365 bytes, checksum: dfc736636d09565846c48076083c1087 (MD5) Previous issue date: 1990 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:36:10Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:14:30-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only AAI9114362 (UMI)AAI9114362 http://hdl.handle.net/2142/19322 eng Copyright 1990 Ng, Kwan Lam Physics, Molecular Physics, Atomic Physics, Optics One-dimensional hydrogen atom text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.