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Title:Selective Population Of Molecular Core Nonpenetrating Rydberg States
Author(s):Grimes, David
Contributor(s):Field, Robert W; Klein, Ethan; Barnum, Timothy J.; Zhou, Yan
Subject(s):Chirped pulse
Abstract:Core nonpenetrating Rydberg states of molecules are a neglected state of matter. They could have a variety of uses, notably state-selective production of molecular ions. Due to the \textit{l}(\textit{l}+1)/r$^{2}$ centrifugal barrier that prevents the Rydberg electron in high-\textit{l} states from penetrating inside of the ion core, the electron is essentially uncoupled from the ion core, and the system becomes atom-like with long lifetimes, an "almost good" \textit{l} quantum number, and electronic transitions that follow $\Delta$J$^{+}$=0 and $\Delta$v$^{+}$=0 propensity rules. However, in most molecules access to these states, via a sequence of $\Delta$\textit{l}=+1 transitions from low-n*, low-\textit{l} states, is blocked by the necessity to traverse the "zone of death," in which nonradiative decay mechanisms are prohibitively fast. We exploit Chirped Pulse millimeter-Wave (CPmmW) spectroscopy to efficiently excite Ca atoms and BaF molecules to core nonpenetrating states in the absence of nonradiative decay mechanisms. A universal method for preparing core nonpenetrating Rydberg states of molecules, which combines CPmmW spectroscopy with STImulated Raman Adiabatic Passage (STIRAP), will be discussed.
Issue Date:2014-06-19
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:Grimes, D.; Field, R.W.; Klein, E.; Barnum, T.J.; Zhou, Y. SELECTIVE POPULATION OF MOLECULAR CORE NONPENETRATING RYDBERG STATES. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.RE07
Rights Information:Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License.
Date Available in IDEALS:2014-09-17

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