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Date: 9-3-2016
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Date: 1-12-2016
1366
Date: 22-3-2016
2152
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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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تفوقت في الاختبار على الجميع.. فاكهة "خارقة" في عالم التغذية
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أمين عام أوبك: النفط الخام والغاز الطبيعي "هبة من الله"
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قسم شؤون المعارف ينظم دورة عن آليات عمل الفهارس الفنية للموسوعات والكتب لملاكاته
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