Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Truppe, S."'
Autor:
Ohayon, B., Hofsäss, S., Padilla-Castillo, J. E., Wright, S. C., Meijer, G., Truppe, S., Gibble, K., Sahoo, B. K.
Isotope shifts (ISs) in atomic energy levels are sensitive probes of nuclear structure and new physics beyond the Standard Model. We present an analysis of the ISs of the cadmium atom (Cd I) and singly charged cadmium ion (Cd II). ISs of the 229 nm,
Externí odkaz:
http://arxiv.org/abs/2208.13599
In this work, we explore the role of chemical reactions on the properties of buffer gas-cooled molecular beams. In particular, we focus on scenarios relevant to the formation of AlF and CaF via chemical reactions between the Ca and Al atoms ablated f
Externí odkaz:
http://arxiv.org/abs/2205.04206
Publikováno v:
J. Chem. Phys. 156, 134301 (2022)
We report on hyperfine-resolved laser spectroscopy of the A$^2\Pi \leftarrow $X$^2\Sigma^+$ transition of MgF, relevant for laser cooling. We recorded 25 rotational transitions with an absolute accuracy of better than 20 MHz, assigned 56 hyperfine li
Externí odkaz:
http://arxiv.org/abs/2112.06555
Spectroscopic characterization of aluminum monofluoride with relevance to laser cooling and trapping
Autor:
Truppe, S., Marx, S., Kray, S., Doppelbauer, M., Hofsäss, S., Schewe, H. C., Walter, N., Pérez-Ríos, J., Sartakov, B. G., Meijer, G.
Publikováno v:
Phys. Rev. A 100, 052513 (2019)
Here we report on spectroscopic measurements of the aluminum monofluoride molecule (AlF) that are relevant to laser cooling and trapping experiments. We measure the detailed energy level structure of AlF in the X$^1\Sigma^+$ electronic ground state,
Externí odkaz:
http://arxiv.org/abs/1908.11774
Autor:
Williams, H. J., Caldwell, L., Fitch, N. J., Truppe, S., Rodewald, J., Hinds, E. A., Sauer, B. E., Tarbutt, M. R.
Publikováno v:
Phys. Rev. Lett. 120, 163201 (2018)
We demonstrate coherent microwave control of the rotational, hyperfine and Zeeman states of ultracold CaF molecules, and the magnetic trapping of these molecules in a single, selectable quantum state. We trap about $5\times 10^{3}$ molecules for 2 s
Externí odkaz:
http://arxiv.org/abs/1711.07355
Autor:
Truppe, S., Hambach, M., Skoff, S. M., Bulleid, N. E., Bumby, J. S., Hendricks, R. J., Hinds, E. A., Sauer, B. E., Tarbutt, M. R.
Experiments with cold molecules usually begin with a molecular source. We describe the construction and characteristics of a cryogenic buffer gas source of CaF molecules. The source emits pulses with a typical duration of 240 $\mu$s, a mean speed of
Externí odkaz:
http://arxiv.org/abs/1707.06291
Autor:
Williams, H. J., Truppe, S., Hambach, M., Caldwell, L., Fitch, N. J., Hinds, E. A., Sauer, B. E., Tarbutt, M. R.
We present the properties of a magneto-optical trap (MOT) of CaF molecules. We study the process of loading the MOT from a decelerated buffer-gas-cooled beam, and how best to slow this molecular beam in order to capture the most molecules. We determi
Externí odkaz:
http://arxiv.org/abs/1706.07848
Autor:
Truppe, S., Williams, H. J., Hambach, M., Caldwell, L., Fitch, N. J., Hinds, E. A., Sauer, B. E., Tarbutt, M. R.
The ability to cool atoms below the Doppler limit -- the minimum temperature reachable by Doppler cooling -- has been essential to most experiments with quantum degenerate gases, optical lattices and atomic fountains, among many other applications. A
Externí odkaz:
http://arxiv.org/abs/1703.00580
Autor:
Truppe, S., Williams, H. J., Fitch, N. J., Hambach, M., Wall, T. E., Hinds, E. A., Sauer, B. E., Tarbutt, M. R.
Using frequency-chirped radiation pressure slowing, we precisely control the velocity of a pulsed CaF molecular beam down to a few m/s, compressing its velocity spread by a factor of 10 while retaining high intensity: at a velocity of 15~m/s the flux
Externí odkaz:
http://arxiv.org/abs/1605.06055
We characterize a Fabry-Perot microwave cavity designed for trapping atoms and molecules at the antinode of a microwave field. The cavity is fed from a waveguide through a small coupling hole. Focussing on the compact resonant modes of the cavity, we
Externí odkaz:
http://arxiv.org/abs/1409.2859