Nonlinear luminescence spectroscopy in a Pt:ethynyl compound
Nonlinear luminescence spectroscopy in a Pt:ethynyl compound
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DOI：
10.1063/1.369264
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发表时间：
1999-02-01
影响因子：
3.2
通讯作者：
Davy, J
中科院分区：
文献类型：
--
作者：
McKay, TJ;Staromlynska, J;Davy, J
我们报告脉冲激光研究的非线性发光的铂乙炔基配合物，从560至700 nm，表现出强烈的双光子吸收从基态单重态的激发单重态。光致发光峰的光谱依赖性表明，在560 - 700 nm的区域内，双光子吸收截面与激发波长无关。通过使用简单的校准，我们已经能够估计由双光子吸收形成的状态数（N-S1），并且已经发现与使用先前测量的β = 0.34 cm/ GW的值的理论的良好一致性。(C)1999年美国物理学会。[S0021-8979（99）08903-3]。
We report pulsed laser studies of nonlinear luminescence in a platinum ethynyl complex which, from 560 to 700 nm, shows strong two-photon absorption from the ground singlet state to an excited singlet state. The spectral dependence of the photoluminescence peaks indicates that in the region from 560 to 700 nm the two- photon absorption cross section is independent of excitation wavelength. Through the use of a simple calibration we have been able to estimate the number of states (N-S1) formed from two- photon absorption, and have found good agreement with theory using the value of beta = 0.34 cm/ GW measured previously. (C) 1999 American Institute of Physics. [S0021-8979(99)08903-3].