Title :
MOT loading enhancement with stimulated light forces
Author :
Liebisch, T.C. ; Blanshan, E. ; Donley, E.A. ; Kitching, J.
Author_Institution :
Time & Freq. Div., NIST, Boulder, CO, USA
Abstract :
We demonstrate atom number enhancement in a magneto-optical trap (MOT) by use of bichromatic cooling to slow an atomic beam that is loaded into a MOT. Bichromatic cooling employs stimulated emission to apply strong cooling forces that are not limited by spontaneous emission. We demonstrate a factor of 3.5 increase in atom number captured from the atomic beam for a 1.5 cm cooling length. For a 1.5 cm effective cooling length, our technique yields MOT atom number enhancement that is about three times higher than the enhancement achieved via spontaneous emission.
Keywords :
atomic beams; atomic clocks; laser cooling; magneto-optical effects; radiation pressure; spontaneous emission; stimulated emission; MOT loading enhancement; atom number enhancement; atomic beam; bichromatic cooling; cooling length; magnetooptical trap; spontaneous emission; stimulated emission; stimulated light forces; Atomic beams; Atomic clocks; Atomic measurements; Cooling; Force; Laser beams; Photonics;
Conference_Titel :
Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International
Conference_Location :
San Fransisco, CA
Print_ISBN :
978-1-61284-111-3
DOI :
10.1109/FCS.2011.5977757
