Enhanced atom guiding in metal-coated, hollow-core optical fibers

Pilloff, Herschel S.

doi:10.1016/s0030-4018(97)00354-4

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…Guiding is enabled through the optical dipole potential: The force on an atom exposed to an off-resonant, spatially-varying intensity distribution is attractive (repulsive) when the laser is tuned below (above) the atomic resonance. This has led to numerous optical guiding schemes tailored for particular applications [1, [4][5][6][7][8][9][10]. Broadly speaking, red-detuned guides are simpler to create, but the high field confinement leads to higher photon scattering rates and level shifts; blue-detuned guides require beam shaping, but confine atoms to the low intensity regions of the beam and can significantly reduce photon scattering and other perturbations [11][12][13][14][15] necessary for sensitive measurements [16,17].…”

Section: Introductionmentioning

confidence: 99%

Cold atom guidance in a capillary using blue-detuned, hollow optical modes

Pechkis¹,

Fatemi²

2012

Opt. Express

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We demonstrate guiding of cold 85Rb atoms through a 100-micron-diameter hollow core dielectric waveguide using cylindrical hollow modes. We have transported atoms using blue-detuned light in the 1st order, azimuthally-polarized TE01 hollow mode, and the 2nd order hollow modes (HE31, EH11, and HE12), and compared these results with guidance in the red-detuned, fundamental HE11 mode. The blue-detuned hollow modes confine atoms to low intensity along the capillary axis, far from the walls. We determine scattering rates in the guides by directly measuring the effect of recoil on the atoms. We observe higher atom numbers guided using red-detuned light in the HE11 mode, but a 10-fold reduction in scattering rate using the 2nd order modes, which have an r4 radial intensity profile to lowest order. We show that the red-detuned guides can be used to load atoms into the blue-detuned modes when both high atom number and low perturbation are desired.

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Section: Introductionmentioning

confidence: 99%

Cold atom guidance in a capillary using blue-detuned, hollow optical modes

Pechkis¹,

Fatemi²

2012

Opt. Express

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“…corresponds to 5000 A Ê and the atom mass, m0, is 4:00 £ 10 ¡ 26 kg. Further details can be found in [9], [10] and references therein. While ®gure 1 is familiar because it shows the repulsive or guiding barrier in front of the inner wall, a new result is obtained when the energy resolution or magni®cation is increased by ' 10 4 .…”

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confidence: 99%

“…Atom guiding in a hollow, metal-coated optical fiber has previously been analyzed [7], [8]. The metal coating is assumed to be a perfect conductor and this provides both simpler boundary conditions for determining exact solutions of the T M 0n modes and maximizes the evanescent guiding field for a given laser electric field injected in the annular region of the fiber.…”

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The Annular Shell Atom Trap (ASAT)

Pilloff¹,

Horbatsch²

2002

Journal of Modern Optics

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In the course of exploring some aspects of atom guiding in a hollow, optical ®bre, a small negative potential energy well was found just in front of the repulsive or guiding barrier. This results from the optical dipole and the van der Waals potentials. The ground state for atoms bound in this negative potential well was determined by numerically solving the SchroÈ dinger equation and it was found that this negative well could serve as an atom trap. This trap is referred to as the Annular Shell Atom Trap or ASAT because of the geometry of the trapped atoms which are located in the locus of points de®ning a very thin annular shell just in front of the guiding barrier. A unique feature of the ASAT is the compression of the atoms from the entire volume to the volume of the annular shell resulting in a very high density of atoms in this trap. This trap may have applications to very low temperatures using evaporative cooling and possibly the formation of BEC. Finally, a scheme is discussed for taking advantage of the de Broglie wavelength to store atoms in a bottle trap based on the inability of long de Broglie wavelengths to escape through a selective de Broglie wavelength ®lter in the atom bottle trap.

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The effect of the van der Waals interaction on the excited state for atom guiding in metal-coated, hollow-core optical fibers

Pilloff

2000

Optics Communications

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Enhanced atom guiding in metal-coated, hollow-core optical fibers

Cited by 7 publications

References 8 publications

Cold atom guidance in a capillary using blue-detuned, hollow optical modes

Cold atom guidance in a capillary using blue-detuned, hollow optical modes

The Annular Shell Atom Trap (ASAT)

The effect of the van der Waals interaction on the excited state for atom guiding in metal-coated, hollow-core optical fibers

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