Here are a schematic drawing and a photograph of our chamber:
It consists of three main parts:
Due to the ultra high vacuum (UHV) requirement for the BEC, the system has five ion pumps (IP) and one titanium sublimation pump (TSP). The small ion pumps have a 20 L/s pumping speed and the large one has a 45 L/s pumping speed. The pumping speed for the TSP is about 600 L/s.
In addition, our experiment requires a two MOT lasers, each with a tapered amplifier, a repumper laser, and a probe/optical pump laser.
Next, how do we make BEC?
|Step 1: Primary MOT|
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