A widely tunable 10-$\mu$m quantum cascade laser phase-locked to a state-of-the-art mid-infrared reference for precision molecular spectroscopy
| Autor: | Benoît Darquié, S. Mejri, Anne Amy-Klein, B. Argence, Sean Tokunaga, Christophe Daussy, Olivier Lopez, Christian Chardonnet, Papa Lat Tabara Sow, Andrey Goncharov |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Secondary frequency standard Physics and Astronomy (miscellaneous) Absorption spectroscopy business.industry Phase (waves) Laser 01 natural sciences Spectral line 3. Good health law.invention Physics - Atomic Physics 010309 optics law 0103 physical sciences Optoelectronics 010306 general physics Spectroscopy Quantum cascade laser Absorption (electromagnetic radiation) business Physics - Optics |
| Popis: | We report the coherent phase-locking of a quantum cascade laser (QCL) at 10-$\mu$m to the secondary frequency standard of this spectral region, a CO2 laser stabilized on a saturated absorption line of OsO4. The stability and accuracy of the standard are transferred to the QCL resulting in a line width of the order of 10 Hz, and leading to our knowledge to the narrowest QCL to date. The locked QCL is then used to perform absorption spectroscopy spanning 6 GHz of NH3 and methyltrioxorhenium, two species of interest for applications in precision measurements. Comment: 5 pages, 4 figures |
| Databáze: | OpenAIRE |
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