Vibrational Spectroscopy On Trapped Cold Molecular Ions

Khanyile, Ncamiso B

Permalink

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

Description

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

Date of Ingest

• 2014-09-17T16:56:01Z
• 2015-04-14T18:42:00Z

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

Genre of Resource

Conference Paper / Presentation

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/

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