Iodine absorption cells quality evaluation methods

0468531 - ÚPT 2017 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Hrabina, Jan - Zucco, M. - Holá, Miroslava - Šarbort, Martin - Acef, O. - Du-Burck, F. - Lazar, Josef - Číp, Ondřej
Iodine absorption cells quality evaluation methods.
20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics (Proceedings of SPIE 10142). Bellingham: SPIE, 2016, s. 1-5, č. článku 101421J. ISSN 0277-786X.
[Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics /20./. Jasná (SK), 05.09.2016-09.09.2016]
Grant CEP: GA ČR GA15-18430S; GA MŠMT(CZ) LO1212; GA MŠMT ED0017/01/01
Institucionální podpora: RVO:68081731
Klíčová slova: laser spectroscopy * absorption iodine cell * frequency stability * laser standard
Kód oboru RIV: BH - Optika, masery a lasery
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2595391

absorption cells represent an unique tool for the laser frequency stabilization. They serve as irreplaceable optical frequency references in realization of high-stable laser standards and laser sources for different brands of optical measurements, including the most precise frequency and dimensional measurement systems. One of the most often used absorption media covering visible and near IR spectral range is molecular iodine. It offers rich atlas of very strong and narrow spectral transitions which allow realization of laser systems with ultimate frequency stabilities in or below 10-14 order level. One of the most often disccussed disadvantage of the iodine cells is iodine’s corrosivity and sensitivity to presence of foreign substances. The impurities react with absorption media and cause spectral shifts of absorption spectra, spectral broadening of the transitions and decrease achievable signal-to-noise ratio of the detected spectra. All of these unwanted effects directly influence frequency stability of the realized laser standard and due to this fact, the quality of iodine cells must be precisely controlled. We present a comparison of traditionally used method of laser induced fluorescence (LIF) with novel technique based on hyperfine transitions linewidths measurement. The results summarize advantages and drawbacks of these techniques and give a recommendation for their practical usage.
Trvalý link: http://hdl.handle.net/11104/0266513