1) features on the surface shape and absorb light, volume 2) on each of the different surface area area. Can learn the type and status of the chemical element composition, including physical characteristics, the structure of the atom that the interest cycle.By scanning incident photon energy and capturing PEEM image at each energy step, a series of images which contains photoabsorption spectra from nanometer-sized areas of the sample can be obtained. Alternatively, photon energy is fixed and an electron energy analyzer is used to determine the photoemission spectra of photoelectrons emitted from certain areas of the sample.
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