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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Second harmonic generation and two-photon luminescence from colloidal gold nanoparticles
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Second harmonic generation and two-photon luminescence from colloidal gold nanoparticles

机译:胶体金纳米粒子的二次谐波产生和双光子发光

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摘要

Second harmonic generation and two-photon luminescence from colloidal gold nanoparticles in the 980-1300 nm wavelength range of exciting femtosecond radiation were investigated experimentally. The measured polarization and spectral characteristics of the second harmonic and two-photon luminescence demonstrate that the observed nonlinear optical signal is determined by the dimers constituting several percent of the total nanoparticle number.
机译:实验研究了激发态飞秒辐射在980-1300 nm波长范围内胶态金纳米颗粒的二次谐波产生和双光子发光。测得的二次谐波和双光子发光的偏振和光谱特性表明,观察到的非线性光学信号由构成总纳米粒子数百分之几的二聚体确定。

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