Blue-Detuned Magneto-optical Trap of Molecules

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Abstract

Direct laser cooling of molecules has reached a phase-space density exceeding 10−6 in optical traps but
with rather small molecular numbers. To progress toward quantum degeneracy, a mechanism that combines
sub-Doppler cooling and magneto-optical trapping would facilitate near unity transfer of ultracold
molecules from the magneto-optical trap (MOT) to a conservative optical trap. Using the unique energy
level structure of YO molecules, we demonstrate the first blue-detuned MOT for molecules that is

Year of Publication
2023
Date Published
2023-05
Journal Title
Physical Review Letters
Volume
130
Issue
19
Start Page or Article ID (correct)
193401
ISSN Number
0031-9007, 1079-7114
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Sub-Doppler cooling and magneto-optical trapping of YO molecules