Shakfa, M. K.
KAUST Department2King Abdullah University for Science and Technology, Clean Combustion Research Center, Thuwal 23955, Saudi Arabia
Clean Combustion Research Center
Permanent link to this recordhttp://hdl.handle.net/10754/673052
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AbstractBending vibrational modes are responsible for a relevant fraction of molecular absorption spectra in the mid-infrared region at wavelengths beyond 12m. To date, the potential of this region for molecular fingerprinting, high-resolution spectroscopy and frequency metrology has been severely hampered by the lack of widely tunable single-mode lasers, with salt-diode lasers almost disappeared, nonlinear laser sources barely delivering optical powers in excess of few hundreds nanowatt  and commercial quantum-cascade-lasers (QCLs) hardly emitting beyond 12m in cw mode . Recently, direct frequency comb spectroscopy has conquered such region and showed impressive capabilities to acquire ultrabroad high-resolution spectra till 16.7m . Nevertheless, spectroscopic data of high metrological quality have not been reported yet, neither spectra with high quality factor in terms of signal-to-noise ratio per spectral point and number of spectral points per spectral feature.
CitationGotti, R., Lamperti, M., Gatti, D., Shakfa, M. K., Cane, E., Tamassia, F., … Marangoni, M. (2021). Bending modes metrology beyond 12 μm. 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). doi:10.1109/cleo/europe-eqec52157.2021.9542519
Conference/Event name2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021