Abstract
Resonant frequency modulation imaging is used to detect free falling ultra-cold atoms. A theoretical comparison of fluorescence imaging (FI) and frequency modulation imaging (FMI) is made, indicating that for low optical depth clouds, FMI accomplished a higher signal-to-noise ratio under conditions necessary for a 200 μm spatially resolved atom interferometer. A 750 ms time-of-flight measurement reveals near atom shot-noise limited number measurements of2×106 Bose-condensed 87Rb atoms. The detection system is applied to high precision spinor BEC based atom interferometer.
Original language | English |
---|---|
Pages (from-to) | 2505-2508 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 41 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Jun 2016 |
Externally published | Yes |