Optical determination of alkali metal vapor number density in the vicinity (∼10-5cm) of cell surfaces

Kaifeng Zhao; Z. Wu; H. M. Lai

doi:10.1364/JOSAB.18.001904

Optical determination of alkali metal vapor number density in the vicinity (∼10^-5cm) of cell surfaces

Kaifeng Zhao, Z. Wu, H. M. Lai

SASN Physics

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We describe a method for determining the number density of the alkali metal vapor by use of an evanescent wave in a single total internal reflection. The method is simple to use, and it has the following useful features: It is most suitable for determining the number density of dense (>10¹³ cm^-3) alkali metal vapor and it permits the measurement of the alkali metal vapor number density in the vicinity (∼10^-5cm) of cell surfaces. Using this method, we measured the number density of Rb metal vapor in the vicinity (∼10^-5cm) of the cell wall in cells that contain only Rb metal and no buffer gas; we found that there is no systematic difference between the Rb number density near the surface and that in the bulk.

Original language	English (US)
Pages (from-to)	1904-1910
Number of pages	7
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	18
Issue number	12
DOIs	https://doi.org/10.1364/JOSAB.18.001904
State	Published - Dec 2001

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Atomic and Molecular Physics, and Optics

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title = "Optical determination of alkali metal vapor number density in the vicinity (∼10-5cm) of cell surfaces",

abstract = "We describe a method for determining the number density of the alkali metal vapor by use of an evanescent wave in a single total internal reflection. The method is simple to use, and it has the following useful features: It is most suitable for determining the number density of dense (>1013 cm-3) alkali metal vapor and it permits the measurement of the alkali metal vapor number density in the vicinity (∼10-5cm) of cell surfaces. Using this method, we measured the number density of Rb metal vapor in the vicinity (∼10-5cm) of the cell wall in cells that contain only Rb metal and no buffer gas; we found that there is no systematic difference between the Rb number density near the surface and that in the bulk.",

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year = "2001",

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doi = "10.1364/JOSAB.18.001904",

language = "English (US)",

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journal = "Journal of the Optical Society of America B: Optical Physics",

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T1 - Optical determination of alkali metal vapor number density in the vicinity (∼10-5cm) of cell surfaces

AU - Zhao, Kaifeng

AU - Wu, Z.

AU - Lai, H. M.

PY - 2001/12

Y1 - 2001/12

N2 - We describe a method for determining the number density of the alkali metal vapor by use of an evanescent wave in a single total internal reflection. The method is simple to use, and it has the following useful features: It is most suitable for determining the number density of dense (>1013 cm-3) alkali metal vapor and it permits the measurement of the alkali metal vapor number density in the vicinity (∼10-5cm) of cell surfaces. Using this method, we measured the number density of Rb metal vapor in the vicinity (∼10-5cm) of the cell wall in cells that contain only Rb metal and no buffer gas; we found that there is no systematic difference between the Rb number density near the surface and that in the bulk.

AB - We describe a method for determining the number density of the alkali metal vapor by use of an evanescent wave in a single total internal reflection. The method is simple to use, and it has the following useful features: It is most suitable for determining the number density of dense (>1013 cm-3) alkali metal vapor and it permits the measurement of the alkali metal vapor number density in the vicinity (∼10-5cm) of cell surfaces. Using this method, we measured the number density of Rb metal vapor in the vicinity (∼10-5cm) of the cell wall in cells that contain only Rb metal and no buffer gas; we found that there is no systematic difference between the Rb number density near the surface and that in the bulk.

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