Electric-field effects on H- photodetachment partial cross sections above 13.4 eV

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/27746

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题名:	Electric-field effects on H- photodetachment partial cross sections above 13.4 eV
作者:	Halka, M.;Harris, P. G.;Mohagheghi, A. H.;Reeder, R.A.;Tang, C. Y.;Bryant, H. C.;Donahue, J. B.;Quick, C. R.
贡献者:	淡江大學物理學系
日期:	1993-07
上传时间:	2013-07-09 15:07:02 (UTC+8)
出版者:	College Park: American Physical Society
摘要:	When static electric fields (F≤90 kV/cm) were applied to the H- photodetachment interaction region, new structure and lowered thresholds for production of neutral hydrogen were observed. Relative partial cross sections were measured by detection of excited states of the fragment neutral hydrogen atom H(N=4, 5, or 6) resulting from laser interaction with relativistic H- ions. Downward shifts in the onset of excited hydrogen production are observed to increase with field strength, and agree with a recent hyperspherical coordinate interpretation of Zhou and Lin [Phys. Rev. Lett. 69, 3294 (1992)]. Field-induced window-type resonance structure is observed both below and above the zero-field threshold (ZFT) energy. Quenching of high-lying autoionizing states was also monitored, providing evidence of field-induced tunneling by resonances lying just below the associated ZFT.
關聯:	Physical Review A (Atomic, Molecular, and Optical Physics) 48(1), pp.419-426
DOI:	10.1103/PhysRevA.48.419
显示于类别:	[物理學系暨研究所] 期刊論文

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