A magneto-optical trap loaded from a pyramidal funnel

Williamson, R. Chris; Voytas, P. A.; Newell, Raymond; Walker, Thad

doi:10.1364/oe.3.000111

Cited by 32 publications

(20 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note here, in Figure 15 the coils are in rectangular shape but in actual literature circular coils are used. In literature [76] conical shaped hollow mirrors were used and tested [77] [76]. Pyramidal MOT give us further insight into the planar mirror-MOT configuration by adopting partially reflection mechanism, which is shown in Figure 16.…”

Section: Working Of Mirror-motmentioning

confidence: 99%

Nanometric surface probing through ultra-cold atoms

Khan¹,

Schaefer²,

Pernice³

et al. 2014

SPIE Proceedings

View full text Add to dashboard Cite

In this thesis we simulate and design an experimental set up that is going to be used in many applications of applied physics and will give us many answer to unsolved puzzles. This experimental set up is going to feature for the first time the ability to interchange an atom chip frequently and rapidly. The setup also brings two emerging fields, ultracold atoms and nanophotonics, together on an optical table.First, we calculated and simulated the cold atom set-up. Then we simulated and designed an atom chip capable of bringing ultra-cold atoms to sub-micron distances to the chip surface. This new apparatus will present very first ideas on how to use the unique combination of cold atom technology with interchangeable photonics components, both, for basic research and for technological applications to modern information technologies. Furthermore, we can readily exchange the chip to test new components without the need for complicated high-vacuum procedures.The setup will be paired with photonic structures built on-chip for the detailed study of matter-light interactions and, e.g., a depth investigation of dispersion forces (the Casimir interaction and the van der Waals interaction) between cold atoms and carbon nanotubes, that can be measured by scanning probe microscopy. This will allow the integration of photonic waveguides atom chip and will open a new door for modern information technologies.Thesis effort is a joint venture project between the European Laboratory for Non-Linear Spectroscopy (LENS), Florence and the Karlsruhe Institute of Technology (KIT), Karlsruhe, and thrives to bring together experiences in cold atom physics and photonics.

show abstract

Section: Working Of Mirror-motmentioning

confidence: 99%

Nanometric surface probing through ultra-cold atoms

Khan¹,

Schaefer²,

Pernice³

et al. 2014

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

“…2. Our PMOT, operated with a single laser beam of <2 MHz FWHM and 100 mW power, is a version of the MOT [9] that emits a cold atomic beam through a hole in the apex of a pyramidal mirror [10]. This is similar to a Low-Velocity Intense Source of atoms (LVIS [11]).…”

Section: A Primary Atomic Beam: Side-loading the Mmotmentioning

confidence: 99%

Continuous propagation and energy filtering of a cold atomic beam in a long high-gradient magnetic atom guide

2006

View full text Add to dashboard Cite

We demonstrate the continuous injection and propagation of a cold atomic beam in a high-gradient (up to 2.7 kGauss/cm) magnetic guide of 1.7 m length. Continuous injection is accomplished using a side-loading scheme that involves a sequence of two modified magneto-optic traps. Methods are developed to measure the atomic-flow temperatures and the flux under steady-state conditions. In the high-gradient portion of the guide, the guided atomic beam has a transverse temperature of 420 µK ± 40µK, a longitudinal temperature of 1 mK, and an average velocity of order 1 m/s. Using a radio-frequency (RF) current of a fixed frequency ν coupled directly into the guide wires, atoms exceeding a transverse energy of hν can be continuously and selectively removed from the atomic beam.

show abstract

“…We plan to use a pyramidal loading system [15] to inject cold atoms into the trap in the next generation apparatus. This will greatly reduce the background ion count compared to the background that results from our current method of loading from a thermal equilibrium vapor which fills the entire vacuum system.…”

Section: (Received 5 May 2000)mentioning

confidence: 99%