2-PHOTON SPECTROSCOPY OF MGO-NI2+

被引：16

作者：

CAMPOCHIARO, C ^{[1
]}

MCCLURE, DS ^{[1
]}

RABINOWITZ, P ^{[1
]}

DOUGAL, S ^{[1
]}

机构：

[1] EXXON RES & ENGN CO,ANNANDALE,NJ 08801

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.43.14

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report polarized two-photon excitation spectra of the 3A2 --> 3T2, 1E, and a3T1 transitions of Ni2+ -doped MgO measured by detecting the 3T2 --> 3A2 infrared luminescence with a Ge photodiode. Two-photon excitation spectra of the 3A2 --> 1T2 and b3T1 transitions were measured by monitoring the visible emission from the 1T2 state. Hidden zeron-phonon lines have been revealed as well as even-parity vibrational features. Additionally, the assignments of the well-known one-photon, odd-parity vibronic spectra have been confirmed by comparison with the two-photon spectra. The two-photon polarization ratios were measured for the 3T2(E) and 3T2(T1) zero-phonon lines and an intensity calculation using only the d electrons was performed. The failure of this calculation demonstrated that the ligands significantly contribute to the overall two-photon intensity.

引用

页码：14 / 26

页数：13

共 36 条

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