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Scheme for locking cooling and slowing lasers for a silicon magneto-optical trap

Sam Ronald, Jonathan Gilbert, W. M. Fairbank +1 more

Bulletin of the American Physical SocietyOct 18, 20130 citations

Magneto-optic trap of Rb atoms with an injection-seeded laser that operates at two frequencies

Han Seb Moon, J. B. Kim, J. D. Park +3 more

We captured Rb atoms in a magneto-optic trap by using two frequencies in an injection-seeding process of a diode laser without the use of a separate repumping laser. In the incomplete injection-seeding condition, the power of the free-running slave laser at the repumping frequency can be partially converted into power at the master laser frequency, which is stabilized at the cooling frequency. We measured conversion efficiencies and frequency shifts based on the injecting power and the preset frequency difference between the master laser and the slave laser.We captured Rb atoms in a magneto-optic trap by using two frequencies in an injection-seeding process of a diode laser without the use of a separate repumping laser. In the incomplete injection-seeding condition, the power of the free-running slave laser at the repumping frequency can be partially converted into power at the master laser frequency, which is stabilized at the cooling frequency. We measured conversion efficiencies and frequency shifts based on the injecting power and the preset frequency difference between the master laser and the slave laser.

Applied OpticsSep 20, 19969 citations

A detailed study on the frequency dependence of a magneto optical trap

Peter Molenaar, O. C. Mantel, P. van der Straten +2 more

European Quantum Electronics Conference (EQEC)Aug 24, 20050 citations

Magneto-Optical Trap for Cesium Atoms Without a Separate Repumping Laser

Junxian Fu, Xuzong Chen, Yi-min Li +2 more

A magneto-optical trap (MOT) for cesium atoms that operates without a separate repumping laser is reported. The differences between a normal MOT and this kind of MOT have been experimentally studied. The influences of a repumping laser on cooling and trapping cesium atoms in the MOT have been carefully investigated. The results reveal that it is the critical injection-locked state of the diode laser that makes magneto-optical trapping of cesium atoms possible without a separate repumping laser.

Chinese Physics LettersNov 1, 19992 citations

Laser frequency stabilization by magnetically assisted rotation spectroscopy

Leszek Krzemień, Krzysztof Brzozowski, Andrzej Noga +4 more

Optics CommunicationsNov 24, 201015 citations

New repumping scheme for a sodium magneto-optical trap

AnnMarie L. Oien, Iain T McKinnie, P. J. Manson +3 more

The role of repumping in the magneto-optical trap (MOT) has often been seen as a necessary evil, requiring the introduction of either an electro-optical modulator or extra laser.1,2 However, repumping can be exploited to improve the performance of the MOT,3 or to study further the behavior of such a trap. We report results of a modified MOT using for repumping the D1 transitions 3S1/2 F = 1 to 3Pl/2 F = 1 and F = 2. Because these wavelengths are well displaced from the usual (D2) repump wavelengths, the direct repump influence on the trapping and cooling laser interaction should be significantly reduced. We also expect further possibilities for cold-atom spectroscopy within the MOT. The possibility of a dark trap with this repumping transition has been suggested.3The role of repumping in the magneto-optical trap (MOT) has often been seen as a necessary evil, requiring the introduction of either an electro-optical modulator or extra laser.1,2 However, repumping can be exploited to improve the performance of the MOT,3 or to study further the behavior of such a trap. We report results of a modified MOT using for repumping the D1 transitions 3S1/2 F = 1 to 3Pl/2 F = 1 and F = 2. Because these wavelengths are well displaced from the usual (D2) repump wavelengths, the direct repump influence on the trapping and cooling laser interaction should be significantly reduced. We also expect further possibilities for cold-atom spectroscopy within the MOT. The possibility of a dark trap with this repumping transition has been suggested.3

Quantum Electronics and Laser Science ConferenceMay 22, 19950 citations

Frequency stabilization of a silicon magneto-optical trap repump laser

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Frequency stabilization of a silicon magneto-optical trap repump laser

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