期刊
PHYSICAL REVIEW A
卷 89, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.89.053416
关键词
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资金
- EPSRC
- Royal Society
- EPSRC [EP/I012044/1, EP/H031103/1, EP/J011401/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H031103/1, EP/I012044/1, EP/J011401/1, 1584525] Funding Source: researchfish
We demonstrate slowing and longitudinal cooling of a supersonic beam of CaF molecules using counterpropagating laser light resonant with a closed rotational and almost-closed vibrational transition. A group of molecules are decelerated by about 20 m/s by applying light of a fixed frequency for 1.8 ms. Their velocity spread is reduced, corresponding to a final temperature of about 300 mK. The velocity is further reduced by chirping the frequency of the light to keep it in resonance as the molecules slow down.
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