Abstract
We present results of absorbance measurements in the range of 300–900 nm on submicrometer-size solid silver needles with aspect ratios near 7:1. The needles have parallel major axes and are formed on a transparent substrate. The needles are modeled as prolate spheroids with shapes determined from electron micrographs. Absorbance spectra as a function of wavelength, polarization, and angle are compared to theoretical absorbance curves derived from electrodynamic theory.
- Received 21 December 1987
DOI:https://doi.org/10.1103/PhysRevB.37.8015
©1988 American Physical Society
