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Tuning a grating-controlled CO2 laser by means of a scanning slit

机译:通过扫描狭缝调谐光栅控制的CO2激光器

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摘要

The use of diffraction gratings as tuning devices in laser resonators is well known and has been demonstrated abundantly for CO2 lasers. As the grating rotates, the lines of the infrared spectrum of the CO2 molecule reach threshold and oscillate one by one. Here it is shown that it is possible to obtain the same spectrum by moving an aperture inside the cavity perpendicularly to the laser axis while keeping the grating stationary. The conditions for obtaining a well-resolved spectrum are formulated for both the rotating grating and the moving aperture case. (C) 2003 Optical Society of America. [References: 8]
机译:将衍射光栅用作激光谐振器中的调谐装置是众所周知的,并且已被大量证明用于CO2激光器。当光栅旋转时,CO2分子的红外光谱线达到阈值并一一振荡。在此示出,通过使腔内的孔垂直于激光轴移动同时保持光栅静止,可以获得相同的光谱。为旋转光栅和移动孔径盒都规定了获得良好分辨的光谱的条件。 (C)2003年美国眼镜学会。 [参考:8]

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