Two-photon spectroscopy of MgO:Ni2+
作者： C. Campochiaro , D. S. McClure , P. Rabinowitz , S. Dougal
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摘要: We report polarized two-photon excitation spectra of the {sup 3}{ital A}{sub 2}{r arrow}{sup T}{sub 2}, 1}{ital E}, and 3}T{sub 1} transitions Ni{sup 2+}-doped MgO measured by detecting 2} infrared luminescence with a Ge photodiode. Two-photon {ital b} were monitoring visible emission from state. Hidden zero-phonon lines have been revealed as well even-parity vibrational features. Additionally, assignments well-known one-photon, odd-parity vibronic confirmed comparison spectra. The polarization ratios for 2}({ital E}) 1}) an intensity calculation using only d} electrons was performed. failure this demonstrated that ligands significantly contribute to overall intensity.
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