Low-noise simultaneous fluorescence detection of two atomic states.
We demonstrate a new simultaneous normalized detection technique for fluorescence detection of ultracold atoms in a superposition of ground-state hyperfine levels. Using this technique we observe atom shot-noise limited detection signal-to-noise ratios in excess of 7800:1 per shot and 14400:1 in 1 s.
Biedermann
G W
GW
Department of Physics, Stanford University, Stanford, CA 94305, USA.
Wu
X
X
Deslauriers
L
L
Takase
K
K
Kasevich
M A
MA