A Slow Atom Source using a Collimated Effusive Oven and a Single-Layer Variable Pitch Coil Zeeman Slower
Ian B. Spielman, Simon C. Bell, Mark D. Junker, Martijin Jasperse, Lincoln D. Turner, Yu-Ju Lin, Robert E. Scholten
We describe a simple slow atom source for loading a rubidium magneto-optical trap. The source includes an effusive oven with a long heated collimation tube. Almost all components are standard vacuum parts. The heating elements and thermocouples are external to the vacuum, protecting them from the hostile hot alkali environment and allowing repair without breaking vacuum. The thermal source is followed by a Zeeman slower with a single-layer coil of variable winding pitch. The single-layer design is simple to construct and has low inductance which allows for rapid switching of the magnetic ﬁeld. The coil pitch was determined by fitting the analytic form of the magnetic ﬁeld for a variable winding pitch to the desired magnetic ﬁeld proﬁle required to slow atoms. The measured magnetic ﬁeld for the constructed coil was in excellent agreement with the desired ﬁeld. The source produced atoms at 35 m/s with a ﬂux up to 2 × 10^10 atoms/ cm^2/s at 200 C.
alkali oven, collimated beam, high flux, laser cooling, zeeman slower
, Bell, S.
, Junker, M.
, Jasperse, M.
, Turner, L.
, Lin, Y.
and E., R.
A Slow Atom Source using a Collimated Effusive Oven and a Single-Layer Variable Pitch Coil Zeeman Slower, Review of Scientific Instruments, [online], https://doi.org/10.1063/1.3276712
(Accessed February 23, 2024)