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Appl Opt. 2014 Nov 1;53(31):7435-41. doi: 10.1364/AO.53.007435.

Spectral properties of molecular iodine in absorption cells filled to specified saturation pressure.

Abstract

We present the results of measurement and evaluation of spectral properties of iodine absorption cells filled at certain saturation pressure. A set of cells made of borosilicate glass instead of common fused silica was tested for their spectral properties in greater detail with special care for the long-term development of the absorption media purity. The results were compared with standard fused silica cells and the high quality of iodine was verified. A measurement method based on an approach relying on measurement of linewidth of the hyperfine transitions is proposed as a novel technique for iodine cell absorption media purity evaluation. A potential application in laser metrology of length is also discussed.

PMID:
25402909

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