Optical Constants of Germanium in the Extreme Ultraviolet Region

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概要

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• The optical constants n and k of a germanium single crystal in the extreme ultraviolet region, from 10.2 to 23.4eV, have been determined by the reflectance measurements. Energies of the plasma oscillation estimated from the real part of the dielectric constant, and the imaginary part of the reciprocal dielectric constant are 14.7 and 16.4 eV, respectively, suggesting that the characteristic energy loss of fast electrons observed at 16.4eV is just caused by the collective excitation of electrons as expected from the free-electron approximation. The tangential plasmon energy is also estimated at about 13eV, corresponding to the value of subsidiary electronic loss observed by Powell at 11 eV.

• 社団法人日本物理学会の論文
• 1963-05-05

著者

• Sasaki Taizo

  University Of Tokyo College Of General Education

関連論文

• Polarization by Reflection in the Vacuum Ultraviolet Region
• Optical Constants of Germanium in the Extreme Ultraviolet Region

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