Interferometric measurements of dynamic polarizabilities for metal atoms using electrically exploding wires in vacuum.
Interferometric measurements of dynamic polarizabilities for metal atoms using electrically exploding wires in vacuum.
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DOI:
10.1103/physreva.73.042501
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发表时间:
2006
影响因子:
2.9
通讯作者:
G. Sarkisov;I. Beigman;V. Shevelko;K. Struve
中科院分区:
文献类型:
--
作者:
G. Sarkisov;I. Beigman;V. Shevelko;K. Struve
Measurements within 10% accuracy of the dynamic dipole polarizabilities {alpha}({lambda}) for five nonrefractory metal atoms (Mg, Ag, Al, Cu, and Au) at laser wavelengths of {lambda} = 532 and 1064 nm are presented using electrical explosion of thin wires in vacuum and a novel laser probing integrated-phase technique. The technique is based on single-wavelength interferometry and does not require axial symmetry of the tested object. Theoretical prediction of {alpha}({lambda}) for wavelengths {lambda} = 355, 532, and 1064 nm, as well as the static dipole polarizabilities {alpha}{sub st}, are also presented. An agreement within 20% was obtained between calculated data, recommended static polarizabilities {alpha}{sub st}, and the measured dynamic polarizabilities {alpha}(532 nm) and {alpha}(1064 nm).