WIDE-RANGE VISIBLE SPECTROSCOPY OF HIGH-SPIN ALKALI TRIMERS ON HELIUM DROPLETS, AND INTERPRETATION OF THEIR ELECTRONIC STRUCTURE

Thumbnail Image

Files

abstract.gif (16.27 KB)

Date

2008

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Ohio State University

Research Projects

Organizational Units

Journal Issue

Abstract

We use helium droplets to assemble all possible combinations of trimers of potassium and rubidium (K$_3$, K$_2$Rb, KRb$_2$, Rb$_3$) in a quartet-spin state, and we measure their electronic excitation spectra in the range 10600--17400~cm$^{-1}$. We use two methods to separate overlapping spectra: visible-visible V-type double-resonance and mass-selective beam depletion. We observe and assign the laser-induced-fluorescence spectra of ten new bands. Assignment is backed by high-level \textit{ab initio} calculations of the electronic levels structure of these molecules. Both experiment and calculations show highly regular patterns which we elucidate in terms of an electron-shell structure similar in spirit to that observed in Na clusters.} \textbf{52,} 2141 (1984).}

Description

W. D. Knight, K. Clemenger, W. A. de Heer, W. A. Saunders, M. Y. Chou, and M. L. Cohen Phys. Rev. Lett.
Author Institution: Institute of Experimental Physics, TU Graz, Petersgasse 16; 8010 Graz, Austria/EU

Keywords

Citation

URI

http://hdl.handle.net/1811/33339

Collections

Abstracts of OSU International Symposium on Molecular Spectroscopy 2000-2009