可见紫外线光谱分析显示，胶状纳米金花的横向和纵向表面等离子体（SP）的吸收波段分别是532和720纳米。
The UV-visible spectra show two bands corresponding to the transverse and longitudinal surface plasmon (SP) absorption at 532 and 720 nm, respectively, for the colloidal GNFs.
哈勃望远镜的最初设计是只能观察光谱中的可见光和紫外线部分，后来在1997年增加了红外观测能力。
Hubble was originally designed to observe in the visible and ultraviolet parts of the spectrum, but a 1997 mission added an infrared observing capability.
通过紫外线光电子光谱和光学吸收的测量，研究人员测定了纳米晶体中电子的最低激发态能级。
By using UV photoelectron spectroscopy and optical absorption measurements, the researchers determined the energy of the lowest excited electronic states in the nanocrystals.
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