Photodetachment Spectroscopy of As$^{\_}$

POSTER

Abstract

Tunable infrared laser photodetachment spectroscopy has been performed on As$^{\_ }$ using a crossed laser-ion beam apparatus. The relative photodetachment cross section for neutral production was measured, revealing a threshold near 804.8 meV, interpreted as the opening of the As$^{\_}$ (4$p^{4} \quad ^{3}P_{2})$ to As (4$p^{3} \quad ^{4}S_{3/2})$ ground state to ground state transition. The $\Delta $E ($^{3}$P$_{1}$ -- $^{3}$P$_{2})$ fine structure splitting is also measured. The values of the present work are consistent with, and reduce the uncertainty of, previous measurements [1,2]. [1] Lippa, T. P., \textit{et al}, Journal of Chemical Physics \textbf{109}, 10727 (1998). [2] Haeffler, G., \textit{et. al}. Zeitshrift f\"{u}r Physik D \textbf{42}, 263 (1997).

Authors

  • R.L. Field III

    Denison University

  • A.P. Snedden

    Denison University

  • J.Z. Shapiro

    Denison University

  • William H. Rauckhorst

    Gothenburg University, Denison University, Bowling Green State University, NASA Glenn Research Center, Ohio Wesleyan University, Nitronex Corporation, 2305 Presidential Drive, Durham, NC, AFRL/MLPS, Wright-Patterson AFB, OH, Miami University, Ursinus College, Purdue University Calumet, GSI, Florida State University, Carnegie Mellon University, Dept. of Health Sciences, Cleveland State University, Physics Dept., Cleveland State University, University of Rochester, OMI College of Applied Science, University of Cincinnati, Davis and Elkins College, WV, Schlumberger-Doll, Korea Institute of Science and Technology, University of Cincinnati, Lock Haven University of Pennsylvania, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6372, Albion College, Albion, MI 49224, University of Toledo, Toledo, OH 43606, Youngstown State University, Joint Institute for Nuclear Research (Dubna), Naval Research Laboratory, ManTech SRS Technologies, Inc., Ecopulse, Inc., Army Research Laboratory, University of Surrey, The Ohio State University, Univ. Akron, Owens Community College, Toledo, OH

  • C.W. Walter

    Denison University

  • N.D. Gibson

    Denison University