5 September 2002 Phase-change-cooled crystal window
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Abstract
This paper reports the innovative structure and working properties of a high-power window cooled with solid-liquid phase change. When the power density of output laser beam is 2.5kw/cm2 and the lasting time is 4seconds, the largest thermal deformation of this window is about 0.45um, approximately equal to 1/4 that of normal quartz window, under the same conditions. And the far field divergence angle of the laser beam from the window has been reduced by 1.2 diffraction limits, by contrast to the one from the normal quartz window.
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Yuling Lu, Yuling Lu, ZuHai Cheng, ZuHai Cheng, Yaoning Zhang, Yaoning Zhang, } "Phase-change-cooled crystal window", Proc. SPIE 4914, High-Power Lasers and Applications II, (5 September 2002); doi: 10.1117/12.481834; https://doi.org/10.1117/12.481834
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