Abstract

We present a simple, reliable, and nondestructive method for the measurement of vacuum pressure in a magneto-optical trap. The vacuum pressure is verified to be proportional to the collision rate constant between cold atoms and the background gas with a coefficient $k$, which can be calculated by means of the simple ideal gas law. The rate constant for loss due to collisions with all background gases can be derived from the total collision loss rate by a series of loading curves of cold atoms under different trapping laser intensities. The presented method is also applicable for other cold atomic systems and meets the miniaturization requirement of commercial applications.

© 2013 Optical Society of America

Magneto-optical trap loading rate dependence on trap depth and vapor density

Magnus Haw, Nathan Evetts, Will Gunton, Janelle Van Dongen, James L. Booth, and Kirk W. Madison
J. Opt. Soc. Am. B 29(3) 475-483 (2012)

Resonator-enhanced optical dipole trap for fermionic lithium atoms

A. Mosk, S. Jochim, H. Moritz, Th. Elsässer, M. Weidemüller, and R. Grimm
Opt. Lett. 26(23) 1837-1839 (2001)

Two-species cold atomic beam

Nathan Lundblad, David C. Aveline, Robert J. Thompson, James M. Kohel, Jaime Ramirez-Serrano, William M. Klipstein, Daphna G. Enzer, Nan Yu, and Lute Maleki
J. Opt. Soc. Am. B 21(1) 3-6 (2004)

Compact laser cooling apparatus for simultaneous cooling of lithium and rubidium

Keith Ladouceur, Bruce G. Klappauf, Janelle Van Dongen, Nina Rauhut, Bastian Schuster, Arthur K. Mills, David J. Jones, and Kirk W. Madison
J. Opt. Soc. Am. B 26(2) 210-217 (2009)

Compact magneto-optical trap with a quartz vacuum chamber for miniature gravimeters

Kanxing Weng, Bin Wu, Jiahong Lin, Yin Zhou, Bing Cheng, and Qiang Lin
J. Opt. Soc. Am. B 37(6) 1637-1642 (2020)