Vibrational Spectroscopy On Trapped Cold Molecular Ions

Permalink

https://hdl.handle.net/2142/51071

Title: Vibrational Spectroscopy On Trapped Cold Molecular Ions
Author(s): Khanyile, Ncamiso B
Contributor(s): Brown, Kenneth R.
Issue Date: 2014-06-19
Keyword(s): Cold/Ultra-cold/Physics
Abstract: We perform vibrational spectroscopy on the $V_{0\leftarrow10}$ overtone of a trapped and sympathetically cooled CaH$^{+}$ molecular ion using a resonance enhanced two photon dissociation scheme. Our experiments are motivated by theoretical work that proposes comparing the vibrational overtones of CaH$^+$ with electronic transitions in atoms to detect possible time variation of in the mass ratio of the proton to electron $\footnote{M. Kajita and Y. Moriwaki, $J. Phys. B. At. Mol. Opt.Phys.$, $\textbf{42}$,154022(2009)}$. Due to the nonexistence of experimental data of the transition, we start the search with a broadband femtosecond Ti:Saph laser guided by theoretical calculations $\footnote{Private communication}$. Once the vibrational transition has been identified, we will move to CW lasers to perform rotationally resolved spectroscopy.
Publisher: International Symposium on Molecular Spectroscopy
Type of Resource: text
Language: English
Permalink: http://hdl.handle.net/2142/51071
DOI: https://doi.org/10.15278/isms.2014.RH08
Copyright and License Information: Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/