1D Magneto-Optical Trap of Polyatomic Molecules

We demonstrate a 1D magneto-optical trap of the polar free radical calcium monohydroxide (CaOH). A quasiclosed cycling transition is established to scatter ∼10^{3} photons per molecule, predominantly limited by interaction time. This enables radiative laser cooling of CaOH while compressing the mole...

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Bibliographic Details
Published in:Physical review letters 2020-04, Vol.124 (13), p.133201-133201, Article 133201
Main Authors: Baum, Louis, Vilas, Nathaniel B, Hallas, Christian, Augenbraun, Benjamin L, Raval, Shivam, Mitra, Debayan, Doyle, John M
Format: Article
Language:English
Subjects:
Free radicals
Laser beams
Laser cooling
Molecular beams
Optical traps
Polyatomic molecules
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Summary:We demonstrate a 1D magneto-optical trap of the polar free radical calcium monohydroxide (CaOH). A quasiclosed cycling transition is established to scatter ∼10^{3} photons per molecule, predominantly limited by interaction time. This enables radiative laser cooling of CaOH while compressing the molecular beam, leading to a significant increase in on axis beam brightness and reduction in temperature from 8.4 to 1.4 mK.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.124.133201