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Date: 17-3-2016
1389
Date: 2-2-2021
1281
Date: 2-2-2021
1624
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X-ray and y-ray lasers
Due to the many applications of laser light it is, of course, highly desirable to build lasers with very short wave-lengths. With respect to the X-ray and y-ray region so far only proposals exist. Possible laser-active quantum systems could be excited atomic nuclei which can emit y-rays. With respect to resonators the principle of the distributed feedback laser has been suggested. Because of the factor v2 in the laser, the realization of such lasers seems to be very difficult, however.
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دراسة يابانية لتقليل مخاطر أمراض المواليد منخفضي الوزن
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اكتشاف أكبر مرجان في العالم قبالة سواحل جزر سليمان
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اتحاد كليات الطب الملكية البريطانية يشيد بالمستوى العلمي لطلبة جامعة العميد وبيئتها التعليمية
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