Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/3782
Title: | Electric-field-induced change of the alkali-metal vapor density in paraffin-coated cells |
Authors: | Kimball, Jackson D.F. Nguyen, Khoa Ravi, K. Sharma, Arijit Prabhudesai, Vaibhav S. Rangwala, S.A. Yashchuk, V.V. Balabas, M.V. Budker, D. |
Issue Date: | Mar-2009 |
Publisher: | American Physical Society |
Citation: | Physical Review A, 2009, Vol. 78, 032901 |
Abstract: | Alkali-metal vapor cells with antirelaxation coating (especially paraffin-coated cells) have been a central tool in optical pumping and atomic spectroscopy experiments for 50 years. We have discovered a dramatic change of the alkali-metal vapor density in a paraffin-coated cell upon application of an electric field to the cell. A systematic experimental characterization of the phenomenon is carried out for electric fields ranging in strength from 0–8 kV/cm for paraffin-coated cells containing rubidium and cells containing cesium. The typical response of the vapor density to a rapid (duration <~100 ms) change in electric field of sufficient magnitude includes (a) a rapid (duration of <~100 ms) and significant increase in alkali-metal vapor density followed by (b) a less rapid (duration of ~1 s) and significant decrease in vapor density (below the equilibrium vapor density), and then (c) a slow (duration of ~100 s) recovery of the vapor density to its equilibrium value. Measurements conducted after the alkali-metal vapor density has returned to its equilibrium value indicate minimal change (at the level of <~10%) in the relaxation rate of atomic polarization. Experiments suggest that the phenomenon is related to an electric-field-induced modification of the paraffin coating. |
Description: | Open Access. |
URI: | http://hdl.handle.net/2289/3782 |
ISSN: | 1050-2947 1094-1622 (Online) |
Alternative Location: | http://link.aps.org/doi/10.1103/PhysRevA.79.032901 http://dx.doi.org/10.1103/PhysRevA.79.032901 http://arxiv.org/abs/0812.4959 |
Copyright: | 2009 The American Physical Society |
Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
File | Description | Size | Format | |
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2009PRA_V79_032901.pdf | Open access | 669.22 kB | Adobe PDF | View/Open |
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