Search Results - "Fedchak, J A"

Λ-enhanced gray molasses in a tetrahedral laser beam geometry by Barker, D S, Norrgard, E B, Klimov, N N, Fedchak, J A, Scherschligt, J, Eckel, S

“…We report the observation of sub-Doppler cooling of lithium using an irregular-tetrahedral laser beam arrangement, which is produced by a nanofabricated…”
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Absolute UV and Vacuum UV Oscillator Strengths for Ni II by Fedchak, J. A, Lawler, J. E

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Experimental and Theoretical Radiative Lifetimes, Branching Fractions, and Oscillator Strengths for Lu I and Experimental Lifetimes for Lu II and Lu III by Fedchak, J. A, Den Hartog, E. A, Lawler, J. E, Palmeri, P, Quinet, P, Biémont, E

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Vacuum Ultraviolet Resonance Absorption f-values for Ni II by Fedchak, J. A, Wiese, L. M, Lawler, J. E

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VUV f-Values of astrophysical Interest from High Sensitivity Absorption Spectroscopy on Atomic Ions by Lawler, J E, Bergeson, S D, Fedchak, J A, Mullman, K L

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A radiofrequency voltage-controlled current source for quantum spin manipulation by Barker, D. S, Restelli, A, Fedchak, J. A, Scherschligt, J, Eckel, S

“…Review of Scientific Instruments 91, 104708 (2020) We present a design for a wide-bandwidth, voltage-controlled current source that is easily integrated with…”
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Absorption f-Values of Ti II Vacuum Ultraviolet Resonance Transitions by Wiese, L. M, Fedchak, J. A, Lawler, J. E

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Evidence for a three-nucleon-force effect in proton-deuteron elastic scattering by Cadman, R V, Brack, J, Cummings, W J, Fedchak, J A, Fox, B D, Gao, H, Glöckle, W, Golak, J, Grosshauser, C, Holt, R J, Jones, C E, Kamada, H, Kinney, E R, Miller, M A, Nagengast, W, Nogga, A, Owen, B R, Rith, K, Schmidt, F, Schulte, E C, Sowinski, J, Sperisen, F, Thorsland, E L, Tobey, R, Wilbert, J, Witała, H

“…Developments in spin-polarized internal targets for storage rings have permitted measurements of 197 MeV polarized protons scattering from vector polarized…”
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Single-beam Zeeman slower and magneto-optical trap using a nanofabricated grating by Barker, D. S, Norrgard, E. B, Klimov, N. N, Fedchak, J. A, Scherschligt, J, Eckel, S

“…Phys. Rev. Applied 11, 064023 (2019) We demonstrate a compact (0.25 L) system for laser cooling and trapping atoms from a heated dispenser source. Our system…”
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A flexible, open-source radio-frequency driver for acousto-optic and electro-optic devices by Barker, D. S, Pisenti, N. C, Restelli, A, Scherschligt, J, Fedchak, J. A, Campbell, G. K, Eckel, S

“…We present a design for a radio-frequency driver that leverages telecom amplifiers to achieve high power output and wide bandwidth. The design consists of two…”
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Light-induced atomic desorption of lithium by Barker, D. S, Norrgard, E. B, Scherschligt, J, Fedchak, J. A, Eckel, S

“…Phys. Rev. A 98, 043412 (2018) We demonstrate loading of a Li magneto-optical trap using light-induced atomic desorption. The magneto-optical trap confines up…”
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Nuclear-spin dependent parity violation in optically trapped polyatomic molecules by Norrgard, E. B., Barker, D. S., Eckel, S., Fedchak, J. A., Klimov, N. N., Scherschligt, J.

“…Improved nuclear spin-dependent parity violation measurements will enable experimental determination of poorly known electroweak coupling parameters. Here, we…”
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Recent developments in surface science and engineering, thin films, nanoscience, biomaterials, plasma science, and vacuum technology by Mozetič, M., Vesel, A., Primc, G., Eisenmenger-Sittner, C., Bauer, J., Eder, A., Schmid, G.H.S., Ruzic, D.N., Ahmed, Z., Barker, D., Douglass, K.O., Eckel, S., Fedchak, J.A., Hendricks, J., Klimov, N., Ricker, J., Scherschligt, J., Stone, J., Strouse, G., Capan, I., Buljan, M., Milošević, S., Teichert, C., Cohen, S.R., Silva, A.G., Lehocky, M., Humpoliček, P., Rodriguez, C., Hernandez-Montelongo, J., Mercier, D., Manso-Silván, M., Ceccone, G., Galtayries, A., Stana-Kleinschek, K., Petrov, I., Greene, J.E., Avila, J., Chen, C.Y., Caja-Munoz, B., Yi, H., Boury, A., Lorcy, S., Asensio, M.C., Bredin, J., Gans, T., O'Connell, D., Brendin, J., Reniers, F., Vincze, A., Anderle, M., Montelius, L.

“…Nanometer-sized structures, surfaces and sub-surface phenomena have played an enormous role in science and technological applications and represent a…”
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Progress towards comparison of quantum and classical vacuum standards by Barker, D.S., Klimov, N.N., Tiesinga, E., Fedchak, J.A., Scherschligt, J., Eckel, S.

“…We present our progress towards a comparison of NIST's cold atom primary vacuum standard and a dynamic expansion vacuum standard. The cold atom vacuum standard…”
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Silane coatings for laser-driven polarized hydrogen sources and targets by Fedchak, J.A, Cabauy, P, Cummings, W.J, Jones, C.E, Kowalczyk, R.S

“…It is necessary to use special coatings on the surfaces of volumes containing polarized atoms in order to minimize depolarizing spin interactions during wall…”
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Electron detachment and charge transfer for collisions of O- and S- with H by FEDCHAK, J. A, HUELS, M. A, DOVERSPIKE, L. D, CHAMPION, R. L

“…Total electron-detachment and charge-transfer cross sections for collisions of O[sup [minus]] and S[sup [minus]] with atomic hydrogen have been measured for…”
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Nuclear tensor polarization in a laser-driven polarized deuterium internal target by Fedchak, J.A., Bailey, K., Cummings, W.J., Gao, H., Holt, R.J., Jones, C.E., Kowalczyk, R.S., O’Neill, T., Poelker, M.

“…We present the results of the first direct measurement of nuclear polarization in an optically pumped spin-exchange polarized deuterium target. Measurements of…”
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Three-nucleon interactions: Evidence from polarized pd elastic scattering by Kinney, E.R., Cadman, R.V., Brack, J., Cummings, W.J., Fedchak, J.A., Fox, B.D., Gao, H., Glöckle, W., Grosshauser, C., Holt, R.J., Jones, C.E., Miller, M.A., Nagengast, W., Owen, B.R., Rith, K., Schmidt, F., Schulte, E.C., Sowinski, J., Sperisen, F., Thorsland, E.L., Tobey, R., Wilbert, J., Witała, H.

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Lambda$-enhanced gray molasses in a tetrahedral laser beam geometry by Barker, D. S, Norrgard, E. B, Klimov, N. N, Fedchak, J. A, Scherschligt, J, Eckel, S

“…We report observation of sub-Doppler cooling of lithium using an irregular-tetrahedral laser beam arrangement, which is produced by a nanofabricated…”
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Ar II branching ratios between 200 and 230 nm by Fedchak, J.A, Lawler, J.E

“…We report Ar II branching ratio measurements in the wavelength range of 200–230 nm. The present results are compared to other experimentally determined Ar II…”
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