OPTICAL MEASUREMENTS OF THE SURFACE-PLASMON OF COPPER
OPTICAL MEASUREMENTS OF THE SURFACE-PLASMON OF COPPER
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DOI：
10.1002/pssb.2221070207
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发表时间：
1981-01-01
期刊：
影响因子：
--
通讯作者：
BRAUNSTEIN, R
中科院分区：
文献类型：
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作者：
ROBUSTO, PF;BRAUNSTEIN, R
通过计算机拟合实验获得的贵金属铜在可见光谱区（0.42 ~ 0.63 μm）的表面等离子体的衰减全内反射（ATR）谱，确定了贵金属铜的光学性质。测定了铜的表面等离子体共振的色散曲线，结果表明，在2.16 eV处的陡峭吸收边处存在共振。由于d带到费米能级的跃迁，这个吸收边导致表面等离子体激元激发的位置从ω 1（ωs）= −1到ω 1（ωs）= −4.7的大位移，并导致在复频率平面中发生真正的共振。
The optical properties of the noble metal copper are determined by computer fitting the experimentally obtained attenuated total internal reflection (ATR) spectra of its surface plasmon in the visible spectral region (0.42 to 0.63 μm). The dispersion curves of the surface plasmon resonance of copper are determined; they show that the resonance exists on the steep absorption edge of ϵ2 at 2.16 eV. This absorption edge, which is due to the d‐band to Fermi level transition, causes the large shift in the location of the surface plasmon excitation from ϵ1(ωs) = −1 to ϵ1(ωs) = −4.7 and causes the true resonance to occur in the complex frequency plane.