Mid-infrared saturated absorption spectroscopy inside a hollow glass waveguide
| Autor: | Jow-Tsong Shy, Cai Tingdong, D. N. Patel, Hsiang-Chen Chui, Chin-Chun Tsai, Tzu Han Su, Nan-Kuang Chen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry Saturated absorption spectroscopy Mid infrared Analytical chemistry 02 engineering and technology Saturated spectroscopy 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Glass waveguide Laser linewidth Optics Lithium niobate crystal 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology business Spectroscopy Saturation (chemistry) |
| Zdroj: | Optics Communications. 467:125695 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2020.125695 |
| Popis: | We report the saturation spectroscopy of carbon dioxide inside a hollow glass waveguide (GW) using a tunable mid-infrared difference frequency generation (DFG) source. This DFG source was generated in a periodically poled lithium niobate crystal with a tuning range from 3.97 to 4. 71 μ m . Saturated spectroscopy was performed on the R(60) transition of CO 2 0001 ← 0000 band at 4. 2 μ m inside a hollow GW of diameter 300 μ m and length 1 m. The saturation dip signal was found with a pump power as low as 0.18 mW inside the hollow GW. The linewidth of the dip was determined to be 4.40 MHz. |
| Databáze: | OpenAIRE |
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