Rotational State Microwave Mixing for Laser Cooling of Complex Diatomic Molecules Article Swipe

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Diatomic molecule Mixing (physics) Microwave Laser cooling Rotational spectroscopy Materials science Atomic physics Raman cooling Laser Molecule State (computer science) Resolved sideband cooling Rotational transition Molecular physics Physics Optics Angular momentum Quantum mechanics Raman scattering Coherent anti-Stokes Raman spectroscopy Raman spectroscopy Algorithm Computer science

Mark Yeo , Matthew T. Hummon , Alejandra Collopy , Bo Yan , Boerge Hemmerling , Eunmi Chae , John M. Doyle , Jun Ye ·

YOU? · · 2015 · Open Access · · DOI: https://doi.org/10.1103/physrevlett.114.223003 · OA: W1624739490

We demonstrate the mixing of rotational states in the ground electronic state using microwave radiation to enhance optical cycling in the molecule yttrium (II) monoxide (YO). This mixing technique is used in conjunction with a frequency modulated and chirped continuous wave laser to slow longitudinally a cryogenic buffer-gas beam of YO. We generate a flux of YO below 10 m/s, directly loadable into a three-dimensional magneto-optical trap. This technique opens the door for laser cooling of diatomic molecules with more complex loss channels due to intermediate states.