1.
Spectral properties of molecular iodine in absorption cells filled to specified saturation pressure.
Appl Opt
; 53(31): 7435-41, 2014 Nov 01.
Article
in English
| MEDLINE
| ID: mdl-25402909
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.