Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 110, Issue 5, Pages 2150-2154Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp056606x
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Funding
- NIH HHS [DP1 OD000285-05, DP1 OD000285-01, DP1 OD000285-03, DP1 OD000285-04, DP1 OD000285, DP1 OD000285-02] Funding Source: Medline
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The optical properties of gold rods electrochemically deposited in anodic aluminum oxide templates have been investigated. Homogeneous suspensions of rods with an average diameter of 85 nm and varying lengths of 96, 186, 321, 465, 495, 578, 641, 735, and 1175 nm were fabricated. The purity and dimensions of these rod nanostructures allowed us to observe higher-order multipole resonances for the first time in a colloidal suspension. The experimental optical spectra agree with discrete dipole approximation calculations that have been modeled from the dimensions of the gold nanorods.
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