Detection of polyatomic molecules using infrared degenerate four-wave mixing
作者： G. J. Germann , A. Mcilroy , T. Dreier , R. L. Farrow , D. J. Rakestraw
关键词: Molecule 、 Optical parametric oscillator 、 Resonance 、 Analytical chemistry 、 Infrared 、 Molecular physics 、 Four-wave mixing 、 Polyatomic ion 、 Degenerate energy levels 、 Mixing (physics) 、 Chemistry
摘要: Degenerate four-wave mixing detection of methane and acetylene is demonstrated using rotational-vibrational transitions for resonance enhancement. High resolution spectra (<0.007 cm−1) acetylene, near 3000 3300 cm−1 respectively, have been acquired a single-longitudinal-mode optical parametric oscillator. These experiments suggest that infrared degenerate provides new diagnostic capability the sensitive polyatomic molecules with high temporal spatial resolution.
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