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Demonstration of a MOT in a sub-millimeter membrane hole

We demonstrate the generation of a cold-atom ensemble within a sub-millimeter diameter hole in a transparent membrane, a so-called “membrane MOT”. With a sub-Doppler cooling process, the atoms trapped by the membrane MOT are cooled down to 10 [Formula: see text] K. The atom number inside the unbridg...

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Detalles Bibliográficos
Autores principales: Lee, Jongmin, Biedermann, Grant, Mudrick, John, Douglas, Erica A., Jau, Yuan-Yu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8062532/
https://www.ncbi.nlm.nih.gov/pubmed/33888789
http://dx.doi.org/10.1038/s41598-021-87927-z
Descripción
Sumario:We demonstrate the generation of a cold-atom ensemble within a sub-millimeter diameter hole in a transparent membrane, a so-called “membrane MOT”. With a sub-Doppler cooling process, the atoms trapped by the membrane MOT are cooled down to 10 [Formula: see text] K. The atom number inside the unbridged/bridged membrane hole is about [Formula: see text] to [Formula: see text] , and the [Formula: see text] -diameter of the MOT cloud is about 180 [Formula: see text] m for a 400 [Formula: see text] m-diameter membrane hole. Such a membrane device can, in principle, efficiently load cold atoms into the evanescent-field optical trap generated by the suspended membrane waveguide for strong atom-light interaction and provide the capability of sufficient heat dissipation at the waveguide. This represents a key step toward the photonic atom trap integrated platform (ATIP).