The angular dependence of the reflectivity spectrum for visible light was measured in opal-metal (Ag and W) composites with a high filling factor. The diffraction patterns were observed at a wavelength essentially exceeding the period of a three-dimensional photonic structure. The authors offer a qualitative explanation based on the similarity between the experimental observations and those modified by the three-dimensional periodicity plasmonic effects in two-dimensional periodic structures with a subwavelength defect. (c) 2007 American Institute of Physics.
机构:
Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China
Li, JS
;
Sun, G
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机构:Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China
Sun, G
;
Chan, CT
论文数: 0引用数: 0
h-index: 0
机构:Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China
机构:
Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China
Li, JS
;
Sun, G
论文数: 0引用数: 0
h-index: 0
机构:Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China
Sun, G
;
Chan, CT
论文数: 0引用数: 0
h-index: 0
机构:Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China