Faraday spectroscopy of atoms confined in a dark optical trap
| Autor: | Terraciano, Matthew L., Bashkansky, Mark, Fatemi, Fredrik |
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| Rok vydání: | 2008 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.77.063417 |
| Popis: | We demonstrate Faraday spectroscopy with high duty cycle and sampling rate using atoms confined to a blue-detuned optical trap. Our trap consists of a crossed pair of high-charge-number hollow laser beams, which forms a dark, box-like potential. We have used this to measure transient magnetic fields in a 500-micron-diameter spot over a 400 ms time window with nearly unit duty cycle at a 500 Hz sampling rate. We use these measurements to quantify and compensate time-varying magnetic fields to ~10 nT per time sample. Comment: 6 pages, 8 figures Accepted in Phys. Rev. A |
| Databáze: | arXiv |
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