Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Investigation of antirelaxation coatings for alkali-metal vapor cells using surface science techniques. / Seltzer, S. J.; Michalak, D. J.; Donaldson, M. H.; Balabas, M. V.; Barber, S. K.; Bernasek, S. L.; Bouchiat, M. A.; Hexemer, A.; Hibberd, A. M.; Kimball, D. F.Jackson; Jaye, C.; Karaulanov, T.; Narducci, F. A.; Rangwala, S. A.; Robinson, H. G.; Shmakov, A. K.; Voronov, D. L.; Yashchuk, V. V.; Pines, A.; Budker, D.
в: Journal of Chemical Physics, Том 133, № 14, 144703, 14.10.2010.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Investigation of antirelaxation coatings for alkali-metal vapor cells using surface science techniques
AU - Seltzer, S. J.
AU - Michalak, D. J.
AU - Donaldson, M. H.
AU - Balabas, M. V.
AU - Barber, S. K.
AU - Bernasek, S. L.
AU - Bouchiat, M. A.
AU - Hexemer, A.
AU - Hibberd, A. M.
AU - Kimball, D. F.Jackson
AU - Jaye, C.
AU - Karaulanov, T.
AU - Narducci, F. A.
AU - Rangwala, S. A.
AU - Robinson, H. G.
AU - Shmakov, A. K.
AU - Voronov, D. L.
AU - Yashchuk, V. V.
AU - Pines, A.
AU - Budker, D.
N1 - Funding Information: The authors thank Daniel Fischer, Kristin Schmidt, and Ed Kramer for assistance with the NEXAFS measurements, and Joel Ager, Joshua Wnuk, David Trease, and Gwendal Kervern for helpful discussions and other assistance. S.J.S., D.J.M., M.H.D., A.P., and D.B., the Advanced Light Source, and the DSC, FTIR, and AFM studies were supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences Division and Nuclear Science Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231 at Lawrence Berkeley National Laboratory. Other parts of this work were funded by the NSF/DST under Grant No. PHY-0425916 for U.S.-India cooperative research, by an Office of Naval Research (ONR) MURI grant, and by ONR under Grant No. N0001409WX21049.
PY - 2010/10/14
Y1 - 2010/10/14
N2 - 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 CC 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.
AB - 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 CC 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.
UR - http://www.scopus.com/inward/record.url?scp=77958086927&partnerID=8YFLogxK
U2 - 10.1063/1.3489922
DO - 10.1063/1.3489922
M3 - Article
VL - 133
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 14
M1 - 144703
ER -
ID: 5286008