Temperature and intensity dependence of Yb-fiber laser light absorption in water
Absorption of CW Yb-fiber laser light of 1.07 μm wavelength in water has been measured at different water temperatures and laser intensities. The absorption coefficient was estimated to be 0.135 cm(-1) at 25 °C water temperature, and this was found to decrease with temperature at a rate of 5.7 × 10(...
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| Veröffentlicht in: | Applied Optics 2011-12, Vol.50 (34), p.6319-6326 |
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| container_issue | 34 |
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| container_title | Applied Optics |
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| creator | Mullick, Suvradip Madhukar, Yuvraj K Kumar, Shailesh Shukla, Dinesh K Nath, Ashish K |
| description | Absorption of CW Yb-fiber laser light of 1.07 μm wavelength in water has been measured at different water temperatures and laser intensities. The absorption coefficient was estimated to be 0.135 cm(-1) at 25 °C water temperature, and this was found to decrease with temperature at a rate of 5.7 × 10(-4) cm(-1) °C(-1). The absorption coefficient increased significantly when the laser beam was focused in water, and the increase depended on the distance of the focal point from the water surface. This has been attributed to the absorption and scattering losses of laser radiation in a cavity formed in water by the focused beam at laser intensities in the megawatts per square centimeter and higher range. |
| doi_str_mv | 10.1364/AO.50.006319 |
| format | Article |
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The absorption coefficient was estimated to be 0.135 cm(-1) at 25 °C water temperature, and this was found to decrease with temperature at a rate of 5.7 × 10(-4) cm(-1) °C(-1). The absorption coefficient increased significantly when the laser beam was focused in water, and the increase depended on the distance of the focal point from the water surface. This has been attributed to the absorption and scattering losses of laser radiation in a cavity formed in water by the focused beam at laser intensities in the megawatts per square centimeter and higher range.</abstract><cop>United States</cop><pmid>22192982</pmid><doi>10.1364/AO.50.006319</doi><tpages>8</tpages></addata></record> |
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| ispartof | Applied Optics, 2011-12, Vol.50 (34), p.6319-6326 |
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| language | eng |
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| source | Alma/SFX Local Collection; Optica Publishing Group Journals |
| subjects | Absorption coefficient Beams (radiation) Holes Lasers Light absorption Surface chemistry Water temperature Wavelengths |
| title | Temperature and intensity dependence of Yb-fiber laser light absorption in water |
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