Energy Transfers between Er3+ Ions Located at the Two Crystalographic Sites of Er2O3 Grown on Si(111)
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概要
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Films of Er2O3 grown on Si(111) substrates by rf-magnetron sputtering were characterized by synchrotron radiation X-ray diffraction and photoluminescence spectroscopy in spectral and time domains. We measured the photoluminescence and the intensity ratio of the peaks in the photoluminesence as a function of temperature at the excitation wavelength of 800 nm. We determined the energy levels of Er3+ ions in poly crystal Er2O3 and revealed energy transfers from C_{2} to C_{3i} sites in the Er2O3 on the basis of a simple theory.
- 2012-02-25
著者
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Omi Hiroo
Ntt Basic Research Laboratories
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Tawara Takehiko
Ntt Basic Res. Lab. Kanagawa Jpn
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Omi Hiroo
NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan
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Tawara Takehiko
NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan
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