Atom Cooling and Trapping

How are atoms cooled down to near absolute zero temperatures? The Physics 2000 web site has an interactive introduction to atom trapping and cooling. To navigate through the Physics 2000 web site continue to click on the "next" button at the bottom of each page (note that Netscape 6 is not supported).

Our Atom Traps
A standard magneto-optical trap
A surface magneto-optical trap. The atoms are trapped below the apparatus inside the glass cell.

 

CCD Image of Cold Atoms