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Towards laser cooling and trapping of aluminium monofluoride with high density

Stefan Truppe, Silvio Marx, Sebastian Kray +5 more

Bulletin of the American Physical SocietyMay 30, 20190 citations

Towards laser cooling of aluminum monofluoride (AlF) molecules

Simon Hofsäss, Maximilian Doppelbauer, Sebastian Kray +4 more

Bulletin of the American Physical SocietyMar 17, 20210 citations

Laser cooling and Zeeman slowing of a silicon atomic beam

Sam Ronald, W. M. Fairbank, S. A. Lee

Bulletin of the American Physical SocietyOct 20, 20170 citations

Progress Towards Laser Cooling and Trapping Strontium Monofluoride from a Cryogenic Beam Source

John F. Barry, E. S. Shuman, David P. DeMille

Bulletin of the American Physical SocietyMay 27, 20100 citations

Saturated absorption spectroscopy of buffer-gas-cooled Barium monofluoride molecules

Wenhao Bu, Yuhe Zhang, Qian Liang +2 more

We report an experimental investigation on the Doppler-free saturated absorption spectroscopy of buffer-gas-cooled Barium monofluoride (BaF) molecules in a 4 K cryogenic cell. The obtained spectra with a resolution of 19 MHz, much smaller than previously observed in absorption spectroscopy, clearly resolve the hyperfine transitions. Moreover, we use these high-resolution spectra to fit the hyperfine splittings of excited A ( v = 0) state and find the hyperfine splitting of the laser-cooling-relevant A 2 Π 1/2 ( v = 0, J = 1/2,+) state is about 18 MHz, much higher than the previous theoretically predicted value. This provides important missing information for laser cooling of BaF molecules.We report an experimental investigation on the Doppler-free saturated absorption spectroscopy of buffer-gas-cooled Barium monofluoride (BaF) molecules in a 4 K cryogenic cell. The obtained spectra with a resolution of 19 MHz, much smaller than previously observed in absorption spectroscopy, clearly resolve the hyperfine transitions. Moreover, we use these high-resolution spectra to fit the hyperfine splittings of excited A ( v = 0) state and find the hyperfine splitting of the laser-cooling-relevant A 2 Π 1/2 ( v = 0, J = 1/2,+) state is about 18 MHz, much higher than the previous theoretically predicted value. This provides important missing information for laser cooling of BaF molecules.

arXiv:2202.02463Frontiers of PhysicsSep 12, 202217 citations

A laser cooling scheme for precision measurements using fermionic barium monofluoride (137Ba19F) molecules

Felix Kogel, Marian Rockenhäuser, Ralf Albrecht +1 more

We theoretically investigate the laser cooling of fermionic barium monofluoride (137BaF) molecules, which are promising candidates for precision studies of weak parity violation and nuclear anapole moments. This molecular species features two nuclear spins, resulting in a hyperfine structure that is considerably more complicated than the one found in the usual laser-cooled diatomics. We use optical Bloch equations and rate equations to show that optical cycling, sub-Doppler cooling and bichromatic forces can all be realized under realistically achievable experimental conditions.We theoretically investigate the laser cooling of fermionic barium monofluoride (137BaF) molecules, which are promising candidates for precision studies of weak parity violation and nuclear anapole moments. This molecular species features two nuclear spins, resulting in a hyperfine structure that is considerably more complicated than the one found in the usual laser-cooled diatomics. We use optical Bloch equations and rate equations to show that optical cycling, sub-Doppler cooling and bichromatic forces can all be realized under realistically achievable experimental conditions.

Jan 1, 20210 citations

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