Figure 2: Dependence of spectrally integrated output energy of Kα emission on pump pulse energy. Here, XFEL pumping pulses excite Cu atoms from the ground state to the upper level (single vacancy of ...
Tightly focused XFEL pulses are directed at a sample made of copper or manganese. Any X-ray photons that the sample emits in the same forward direction as the input pulse hit a piece of ...
Once only a part of science fiction, lasers are now everyday objects used in research, health care and even just for fun. Previously available only in low-energy light, lasers are now available in ...
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