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Date: 23-1-2021
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Date: 16-3-2016
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Date: 14-4-2016
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Fluorides
Doping of fluorides with trivalent rare earth ions requires charge compensation which complicates the crystal growth process. The important representative of this crystal family is yttrium fluoride (YLiF4), a uniaxial crystal. YLiF4 is transparent to 150 nm. Therefore, high-current-density xenon flashlamps which emit strongly in the blue and near-ultraviolet can be used as pump sources without damage to the material. The most common dopant of YLF is Nd3+. Nd:YLF offers a reduction in thermal lensing and birefringence combined with improved energy storage relative to Nd :YAG. The thermomechanical properties of Nd : YLF, however, are not as good as those of Nd :YAG. Details of Nd : YLF.
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علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
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أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
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مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
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