نتایج جستجو برای: pressure broadening
تعداد نتایج: 418582 فیلتر نتایج به سال:
We report measurements of the valence band width in compressed Ge determined from x-ray emission spectra below the Ge K edge. The width of the valence band does not show any pressure dependence in the semiconducting diamond-type structure of Ge below 10 GPa. On the other hand, in the metallic beta-Sn phase above 10 GPa the valence band width increases under compression. Density-functional calcu...
The gas surface density profile of protoplanetary disks is one the most fundamental physical properties to understand planet formation. However, it challenging determine observationally, because H$_2$ emission cannot be observed in low-temperature regions. We analyzed Atacama Large Millimeter/submillimeter Array (ALMA) archival data \co line toward disk around TW Hya and discovered extremely br...
Self-mixing laser sensors require few components and can be used to measure velocity. The self-mixing laser sensor consists of a laser emitting a beam focused onto a rough target that scatters the beam with some of the emission re-entering the laser cavity. This 'self-mixing' causes measurable interferometric modulation of the laser output power that leads to a periodic Doppler signal spectrum ...
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