Extreme ultraviolet radiation (EUV or XUV) is high-energy ultraviolet radiation, generally defined to be electromagnetic radiation in the part of the electromagnetic spectrum spanning wavelengths from 124 nm down to 10 nm, and therefore (by the Planck–Einstein equation) having photons with energies from 10 eV up to 124 eV (corresponding to 124 nm to 10 nm respectively). EUV is naturally generated by the solar corona and artificially by plasma and synchrotron light sources.
Its main uses are photoelectron spectroscopy, solar imaging, and lithography.
In air, EUV is the most highly absorbed component of the electromagnetic spectrum, requiring high vacuum for transmission.
Read more about Extreme Ultraviolet: EUV Generation, EUV Absorption in Matter, EUV Damage
Famous quotes containing the words extreme and/or ultraviolet:
“The cultivation of one set of faculties tends to the disuse of others. The loss of one faculty sharpens others; the blind are sensitive in touch. Has not the extreme cultivation of the commercial faculty permitted others as essential to national life, to be blighted by disease?”
—J. Ellen Foster (1840–1910)
“Like ultraviolet rays memory shows to each man in the book of life a script that invisibly and prophetically glosses the text.”
—Walter Benjamin (1892–1940)