# Browse Abstracts & Presentations - 2014 International Symposium on Molecular Spectroscopy by Subject "Cold/Ultra-cold/Physics"

• (International Symposium on Molecular Spectroscopy, 2014-06-19)
The generation of a fountain of laser-cooled ytterbium fluoride, YbF, has been recently proposed\footnote{Tarbutt, M R; Sauer, B E; Hudson, J J; Hinds E A, New J. Phys 15, 053034, 2013.} as a method for long coherent ...

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Microsoft PowerPoint 2007 (11MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
We demonstrate that a single spectrally filtered femtosecond laser, tuned to the electronic A-X transition of trapped AlH$^{+}$, can efficiently cool rotations from room temperature to the ground state. The nearly diagonal ...

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Microsoft PowerPoint 2007 (2MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
Reactions of laser-cooled Ca$^{+}$ and Ba$^{+}$ ions with O$_{2}$ provide pathways to the formation of cold molecular cations (CaO$^{+}$ and BaO$^{+}$) that may be further manipulated using ion trapping techniques. ...

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PDF (385kB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
Spectroscopy has taught us that atoms and molecules are the same now as they were in the early Universe. This means that the nature of the fundamental forces, and the chemical bonds that derive from the strength of the ...

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Microsoft PowerPoint 2007 (3MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
Following the sequential pick-up of OH and CO by helium nanodroplets, the infrared depletion spectrum is measured in the fundamental OH stretching region. Although several potentially accessible minima exist on the associated ...

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Microsoft PowerPoint 2007 (5MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
To laser-cool a species, a closed (or nearly closed) cycle is required to dissipate translational energy through many directed laser-photon absorption and subsequent randomly-directed spontaneous emission events. Many ...

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Microsoft PowerPoint 2007 (11MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
We aim to slow a supersonic, molecular beam of $^{11}$BH using a Zeeman slower and subsequently cool the molecules to sub-millikelvin temperatures in a magneto-optical trap. Most molecules are not suitable for direct laser ...

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Microsoft PowerPoint 2007 (1MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
Light polar, paramagnetic molecules, such as magnesium hydride, MgH, are attractive for slowing and trapping experiments because these molecules have both non-zero permanent electric dipole, $\mu$$_{el}$, and magnetic ...

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Microsoft PowerPoint 2007 (12MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
A universal method has been developed in our group for measuring the spectra of molecular ions in a 22-pole radio frequency trap at low temperatures. It is based on laser induced inhibition of complex growth (LIICG)$^{1}$. ...

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PDF (1MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
Cryogenic buffer gas cooled beams and cells can be used to study many species, from atoms and polar molecules to biomolecules. We report on recent applications of this technique to improve the limit on the electron electric ...

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PDF (1MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
Having three and four electrons, respectively, He$_2^+$ and He$_2$ represent systems for which highly accurate \textit{ab-initio} calculations might become feasible in the near future\footnote{W.-C. Tung, M. Pavanello, ...

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PDF (9MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
A limit on a possible cosmological variation of the proton-to-electron mass ratio $\mu$ is derived from observation of methanol lines in the PKS1830-211 lensed galaxy at redshift $z \sim 0.89$ with the Effelsberg 100 m ...

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Microsoft PowerPoint 2007 (3MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.5]{MinkGrid_DispPlot_Alt.eps} \end{wrapfigure} Molecular spectroscopy makes very precise applications of quantum theory including GPS, BEC, and laser clocks. Now ...

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PDF (27MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
\begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.55]{Physical_Terms_Alt12.eps} \end{wrapfigure} A “simplest molecule” consisting of CW-laser beam pairs helps to clarify relativity in Talk I. In spite of a ...

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PDF (16MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
We demonstrate sympathetic Doppler cooling and our progress towards sideband cooling of a CaH$^{+}$ ion co-trapped with a Ca$^{+}$ atomic ion in a linear Paul trap. Molecular ions are generally difficult to laser cool due ...

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Microsoft PowerPoint 2007 (4MB)
• (International Symposium on Molecular Spectroscopy, 2014-06-19)
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 ...

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Microsoft PowerPoint 2007 (3MB)