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Investigation of alkali-wall interactions in antirelaxation-coated vapor cells

R. Zou, Brian Patton, T.J. Santos +3 more

Bulletin of the American Physical SocietyJun 7, 20120 citations

Characterization of antirelaxation-coated vapor cells in high-temperature regime

Wenhao Li, M. V. Balabas, Szymon Pustelny +2 more

Bulletin of the American Physical SocietyMay 27, 20160 citations

Investigation of hyperfine clock resonances in alkali-vapor cells with novel antirelaxation surface coating

Eric Corsini, Todor S. Karaulanov, M. V. Balabas

Bulletin of the American Physical SocietyJun 17, 20111 citation

Application of Electric Fields to Alkali Vapor Cells with Alkene-based Antirelaxation Coatings

Brandon Gruidl, Li Wang, Cheng-Kai Chen +2 more

Bulletin of the American Physical SocietyJun 4, 20130 citations

Investigation of antirelaxation coatings for alkali-metal vapor cells using surface science techniques

Scott J. Seltzer, David J. Michalak, Marcus H. Donaldson +17 more

Many technologies based on cells containing alkali-metal atomic vapor benefit from the use of antirelaxation surface coatings in order to preserve atomic spin polarization. In particular, paraffin has been used for this purpose for several decades and has been demonstrated to allow an atom to experience up to 10 000 collisions with the walls of its container without depolarizing, but the details of its operation remain poorly understood. We apply modern surface and bulk techniques to the study of paraffin coatings in order to characterize the properties that enable the effective preservation of alkali spin polarization. These methods include Fourier transform infrared spectroscopy, differential scanning calorimetry, atomic force microscopy, near-edge x-ray absorption fine structure spectroscopy, and x-ray photoelectron spectroscopy. We also compare the light-induced atomic desorption yields of several different paraffin materials. Experimental results include the determination that crystallinity of the coating material is unnecessary, and the detection of C[Double Bond]C double bonds present within a particular class of effective paraffin coatings. Further study should lead to the development of more robust paraffin antirelaxation coatings, as well as the design and synthesis of new classes of coating materials.Many technologies based on cells containing alkali-metal atomic vapor benefit from the use of antirelaxation surface coatings in order to preserve atomic spin polarization. In particular, paraffin has been used for this purpose for several decades and has been demonstrated to allow an atom to experience up to 10 000 collisions with the walls of its container without depolarizing, but the details of its operation remain poorly understood. We apply modern surface and bulk techniques to the study of paraffin coatings in order to characterize the properties that enable the effective preservation of alkali spin polarization. These methods include Fourier transform infrared spectroscopy, differential scanning calorimetry, atomic force microscopy, near-edge x-ray absorption fine structure spectroscopy, and x-ray photoelectron spectroscopy. We also compare the light-induced atomic desorption yields of several different paraffin materials. Experimental results include the determination that crystallinity of the coating material is unnecessary, and the detection of C[Double Bond]C double bonds present within a particular class of effective paraffin coatings. Further study should lead to the development of more robust paraffin antirelaxation coatings, as well as the design and synthesis of new classes of coating materials.

arXiv:1002.4417The Journal of Chemical PhysicsOct 11, 201063 citations

Characterization of high-temperature performance of cesium vapor cells with anti-relaxation coating

Wenhao Li, M. V. Balabas, Xiang Peng +4 more

Vapor cells with antirelaxation coating are widely used in modern atomic physics experiments due to the coating's ability to maintain the atoms' spin polarization during wall collisions. We characterize the performance of vapor cells with different coating materials by measuring longitudinal spin relaxation and vapor density at temperatures up to 95 °C. We infer that the spin-projection-noise-limited sensitivity for atomic magnetometers with such cells improves with temperature, which demonstrates the potential of antirelaxation coated cells in applications of future high-sensitivity magnetometers.Vapor cells with antirelaxation coating are widely used in modern atomic physics experiments due to the coating's ability to maintain the atoms' spin polarization during wall collisions. We characterize the performance of vapor cells with different coating materials by measuring longitudinal spin relaxation and vapor density at temperatures up to 95 °C. We infer that the spin-projection-noise-limited sensitivity for atomic magnetometers with such cells improves with temperature, which demonstrates the potential of antirelaxation coated cells in applications of future high-sensitivity magnetometers.

arXiv:1609.04867Journal of Applied PhysicsFeb 13, 201747 citations

Investigation of antirelaxation wall coatings beyond melting temperatures

Abstract

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Investigation of antirelaxation wall coatings beyond melting temperatures

Abstract

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