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Nayfeh, Munir H. Ng, Kwan Lam 2011-05-04T20:44:44Z 2011-05-04T20:44:44Z 10000-01-01 1990 The photoionization spectrum of highly excited hydrogen atoms in the energy range between E = 0 and E = Ec ionization thresholds is examined in the presence of a strong de 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 onedimensional 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. Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-04T20:44:44Z No. of bitstreams: 1 1990_ng.pdf: 4575903 bytes, checksum: b7e7bb27a56025bb58e0e4af4d66ca5d (MD5) Made available in DSpace on 2011-05-04T20:44:44Z (GMT). No. of bitstreams: 1 1990_ng.pdf: 4575903 bytes, checksum: b7e7bb27a56025bb58e0e4af4d66ca5d (MD5) Previous issue date: 1990 Restriction data tranferred 2014-07-01T11:12:22-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-05-04T20:44:44Z Item is restricted indefinitely. Thesis U of I Only 3471837 http://hdl.handle.net/2142/18917 en 1990 Kwan Lam Ng hydrogen phtoionization spectrum ionization threshold One-dimensional hydrogen atom Dissertation / Thesis text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.