Iodine absorption cells quality measurements
| Autor: | Frederic Du-Burck, Miroslava Holá, Ouali Acef, Jan Hrabina, Josef Lazar, Ondrej Cip, Martin Šarbort, Massimo Zucco |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Laser source chemistry.chemical_element Laser Iodine 01 natural sciences law.invention 010309 optics Laser linewidth Optics Quality (physics) chemistry law 0103 physical sciences Sensitivity (control systems) 010306 general physics Laser-induced fluorescence business Absorption (electromagnetic radiation) |
| Zdroj: | 2016 European Frequency and Time Forum (EFTF). |
| Popis: | This work is oriented to comparison of methods for iodine absorption cells quality evaluation. Optical frequency references based on molecular iodine represent one of the most used references for stabilizion of laser standards working at visible spectral range. Unfortunately iodine is a media with very high sensitivity to contamination so the chemical purity of iodine cells must be preciselly controlled. Traditional methods for iodine absorption cells quality checking have several difficulties and disadvantages, these problems complicate their common using in labs. Due to this reason we propose an alternative method of spectral linewidths measurement, which overcomes these difficulties of traditionally used approaches and which serves as a tool for iodine cells quality evaluation. In this work we present the results of comparison of two laser induced fluorescence setups (with and without the compensation for the laser source spectral mode-hops) with proposed method of selected hyperfine transition linewidth measurements and we discuss advantages and limitations of these methods for practical using. |
| Databáze: | OpenAIRE |
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