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تعداد نتایج: 602044 فیلتر نتایج به سال:
An IR grating on a clean W(100) surface is shown to generate both homogeneous and inhomogeneous surface electromagnetic waves. An observed interference between these two components, which can be described in terms of a two-beam interferometer with variable arm amplitude and fixed optical path, is used to measure the plasma frequency accurately in the IR.
This work describes a cryogenic, electro-optically -switched Yb:YAG laser that generates 114-W average TEM power with 47% optical-to-optical efficiency. Pulse repetition frequency is 5 kHz, pulse duration is 16 ns full-width at half-maximum, and is less than 1.05.
The NVV Auger spectrum from a clean W(lOO) surface has been measured in the second derivative, d N(E)I dE , mode to enhance fine structure. This measurement is compared with spectra generated from both the self-convolution of the tungsten valence-band bulk density of states (obtained from a relativistic APW energy band calculation) and a "restricted convolution" in which only transitions involv...
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