Quadrupole mode in the extinction and elastic-scattering spectra of gold microstructures.
作者： William P. Acker , Peter W. Barber , Burghard Schlicht , Richard K. Chang
DOI: 10.1364/OL.12.000465
关键词: Quadrupole 、 Extinction (optical mineralogy) 、 Materials science 、 Spectral line 、 Electron-beam lithography 、 Optics 、 Radius 、 Elastic scattering 、 Scattering 、 Mie scattering
摘要: The quadrupole mode and the retardation-broadened, wavelength-shifted dipole have been observed in extinction elastic-scattering spectra of two-dimensional arrays Au microstructures immersed air, water, toluene. electron-beam lithographically produced microstructures, resembling hemispheres with radius ~100 nm, were arranged a square lattice center-to-center separation 500 nm situated on 5-nm-thick layer Cr coated an optically flat quartz substrate.
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