Simultaneous Loading of $^{87}$ Rb and $^{85}$ Rb into a Optical Trap from a MOTSimultaneous Loading of $^{87}$Rb and $^{85}$Rb into a Optical Trap from a MOT

Anthony Gorges, David French, Jacob Roberts

Bulletin of the American Physical SocietyJun 6, 20070 citations

Loading an Rb-87 MOT directly into a variable-period accordion lattice

J. H. Huckans

Bulletin of the American Physical SocietyJun 10, 20150 citations

Characterisation of focused-beam trap: FORT loading optimisation

Nuttanan Tanasanchai, K Srakowl, Apimook Watcharangkool

We investigate the properties of the focused-beam magneto-optical trap (FBT) of Rb 85 atoms, which provides more optical accessibility in contrast to typical magneto-optical trap (MOT). We have characterised the relations between temperature, number and density of trapped atoms versus trap parameters. In this paper, we discuss some distinctive features of the FBT comparing to those of standard MOTs, and determine a suitable condition in which loading atoms into a far-off-resonance optical dipole trap (FORT) is possible. Although the trap can capture fewer atoms comparing to the standard MOTs, due to its asymmetric geometry, it may offer an alternative trap configuration for preparing single atom.We investigate the properties of the focused-beam magneto-optical trap (FBT) of Rb 85 atoms, which provides more optical accessibility in contrast to typical magneto-optical trap (MOT). We have characterised the relations between temperature, number and density of trapped atoms versus trap parameters. In this paper, we discuss some distinctive features of the FBT comparing to those of standard MOTs, and determine a suitable condition in which loading atoms into a far-off-resonance optical dipole trap (FORT) is possible. Although the trap can capture fewer atoms comparing to the standard MOTs, due to its asymmetric geometry, it may offer an alternative trap configuration for preparing single atom.

Journal of Physics Conference SeriesDec 1, 20181 citation

Loading a K dipole trap from a MOT

Bruno Marangoni, Carlos Renato Menegatti, Luís Gustavo Marcassa

Bulletin of the American Physical SocietyJun 6, 20120 citations

Influence of optical molasses in loading a shallow optical trap

Mathew Hamilton, Anthony Gorges, Jacob Roberts

We have examined loading of $^{85}\mathrm{Rb}$ atoms into a shallow far-off-resonance trap (FORT) from an optical molasses stage following a magneto-optical trap (MOT) stage and compared it to loading from a MOT stage only. Substantially more atoms could be loaded into the FORT using an optical molasses. To determine why this was the case, we measured the rate of atoms loaded into the FORT and the losses from the FORT during both loading processes over a range of detunings and hyperfine pump powers. We found that the losses induced during MOT loading were essentially the same as the losses induced during molasses loading and decreased with increased red detuning; however, we found that the differences in load rate caused an optical molasses to optimize at a greater detuning, improving the number of atoms we could trap by a factor of 2 over that of optimal loading from a MOT.We have examined loading of $^{85}\mathrm{Rb}$ atoms into a shallow far-off-resonance trap (FORT) from an optical molasses stage following a magneto-optical trap (MOT) stage and compared it to loading from a MOT stage only. Substantially more atoms could be loaded into the FORT using an optical molasses. To determine why this was the case, we measured the rate of atoms loaded into the FORT and the losses from the FORT during both loading processes over a range of detunings and hyperfine pump powers. We found that the losses induced during MOT loading were essentially the same as the losses induced during molasses loading and decreased with increased red detuning; however, we found that the differences in load rate caused an optical molasses to optimize at a greater detuning, improving the number of atoms we could trap by a factor of 2 over that of optimal loading from a MOT.

arXiv:0811.0410Physical Review AJan 21, 20096 citations

Investigations of Far-Off Resonance Trap Loading and Loss Mechanisms

Kristan L. Corwin, T. E. Chupp, Kurt W. Miller +1 more

APSMay 1, 19980 citations

Simultaneous Loading of

^{87}

Rb and

^{85}

Rb into a Optical Trap from a MOT

We have examined loading of

^{85}\mathrm{Rb}

atoms into a shallow far-off-resonance trap (FORT) from an optical molasses stage following a magneto-optical trap (MOT) stage and compared it to loading from a MOT stage only. Substantially more atoms could be loaded into the FORT using an optical molasses. To determine why this was the case, we measured the rate of atoms loaded into the FORT and the losses from the FORT during both loading processes over a range of detunings and hyperfine pump powers. We found that the losses induced during MOT loading were essentially the same as the losses induced during molasses loading and decreased with increased red detuning; however, we found that the differences in load rate caused an optical molasses to optimize at a greater detuning, improving the number of atoms we could trap by a factor of 2 over that of optimal loading from a MOT.