Search Results - "Olson, Spencer E"
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Ex vacuo atom chip Bose-Einstein condensate
Published in Applied physics letters (26-12-2016)“…Ex vacuo atom chips, used in conjunction with a custom thin walled vacuum chamber, have enabled the rapid replacement of atom chips for magnetically trapped…”
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Journal Article -
2
Gridless DSMC
Published in Journal of computational physics (01-09-2008)“…This work concerns the development of a gridless method for modeling the inter-particle collisions of a gas. Conventional fixed-grid algorithms are susceptible…”
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Journal Article -
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PID feedback for load-balanced parallel gridless DSMC
Published in Computer physics communications (01-12-2010)“…Parallel code presents a non-trivial problem of load balancing computational workload throughout a system of hardware and software resources. The task of load…”
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Journal Article -
4
Cold-atom confinement in an all-optical dark ring trap
Published in Physical review. A, Atomic, molecular, and optical physics (28-12-2007)“…We demonstrate confinement of {sup 85}Rb atoms in a dark, toroidal optical trap. We use a spatial light modulator to convert a single blue-detuned Gaussian…”
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Journal Article -
5
On the stability of atom chip interferometers
Published in 2015 IEEE International Symposium on Inertial Sensors and Systems (ISISS) Proceedings (01-03-2015)“…We calculate the sensitivity to changes in temperature and current for a resonant atom interferometer device based on oscillations of a cold, magnetically…”
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Conference Proceeding -
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Phase space analysis of two-wavelength interferometry
Published 19-09-2023“…Multiple wavelength phase shifting interferometry is widely used to extend the unambiguous range (UR) beyond that of a single wavelength. Towards this end,…”
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Journal Article -
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Pressure-driven evaporative cooling in atom guides
Published in Physical review. A, Atomic, molecular, and optical physics (13-10-2014)Get full text
Journal Article -
8
Temperature-dependent photon scattering in blue-detuned optical traps
Published in Physical review. A, Atomic, molecular, and optical physics (03-08-2011)“…We have observed time-varying spin relaxation of trapped cold atoms due to photon scattering in blue-detuned, crossed, hollow Laguerre-Gaussian beams. These…”
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Journal Article -
9
Clean, Robust Alkali Sources by Intercalation within Highly-Oriented Pyrolytic Graphite
Published 03-03-2020“…We report the fabrication, characterization, and use of rubidium vapor dispensers based on highly-oriented pyrolytic graphite (HOPG) intercalated with metallic…”
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Journal Article -
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Long, high -gradient magnetic atom guide and progress towards an atom laser
Published 01-01-2006“…The continuous injection and propagation of a cold atomic beam in a 1.7 m long high-gradient (up to 2.7 kG/cm) magnetic guide is demonstrated. Continuous…”
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Dissertation -
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Long, high-gradient magnetic atom guide and progress towards an atom laser
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Dissertation -
12
Pressure-Driven Evaporative Cooling in Atom Guides
Published 04-04-2014“…Phys. Rev. A 90, 043612 (2014) We study steady-state evaporation in an atom guide via Monte Carlo simulations. The evaporation surface follows a specific…”
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Journal Article -
13
Tunable axial potentials for atom chip waveguides
Published 31-10-2017“…Phys. Rev. A 96, 053606 (2017) We present a method for generating precise magnetic potentials that can be described by a polynomial series along the axis of a…”
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Journal Article -
14
Magnetically controlled velocity selection in a cold-atom sample using stimulated Raman transitions
Published in Physical review. A, Atomic, molecular, and optical physics (01-11-2007)“…We observe velocity-selective two-photon resonances in a cold atom cloud in the presence of a magnetic field. We use these resonances to demonstrate a simple…”
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Journal Article -
15
Ex Vacuo Atom Chip Bose-Einstein Condensate (BEC)
Published 16-08-2016“…Ex vacuo atom chips, used in conjunction with a custom thin walled vacuum chamber, have enabled the rapid replacement of atom chips for magnetically trapped…”
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Journal Article -
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Continuous propagation and energy filtering of a cold atomic beam in a long high-gradient magnetic atom guide
Published in Physical review. A, Atomic, molecular, and optical physics (15-03-2006)“…We demonstrate the continuous injection and propagation of a cold atomic beam in a high-gradient (up to 2.7 kG/cm) magnetic guide of 1.7 m length. Continuous…”
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Journal Article -
18
Optimized High-Resolution Simulation of a THz Traveling Wave Tube Amplifier
Published in 2010 DoD High Performance Computing Modernization Program Users Group Conference (01-06-2010)“…Modeling of complex systems typically requires many iterations of theoretical design, numerical simulation, and analysis. The goal of this project was to…”
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Conference Proceeding -
19
Cold atom confinement in an all-optical dark ring trap
Published 08-02-2008“…Phys. Rev. A 76, 061404(R) (2007) We demonstrate confinement of $^{85}$Rb atoms in a dark, toroidal optical trap. We use a spatial light modulator to convert a…”
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Journal Article -
20
Magnetically-controlled velocity selection in a cold atom sample using stimulated Raman transitions
Published 03-01-2008“…Physical Review A 76, 053421 (2007) We observe velocity-selective two-photon resonances in a cold atom cloud in the presence of a magnetic field. We use these…”
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Journal Article