Silver nanowire array infrared polarizers

A silver nanowire array micropolarizer within an anodic alumina membrane (AAM) was fabricated by anodization of pure Al foil and electrodeposition of Ag, respectively. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy investigations reveal that the nanowires are e...

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Bibliographic Details
Published inNanotechnology Vol. 14; no. 1; pp. 20 - 24
Main Authors Pang, Y T, Meng, G W, Fang, Q, Zhang, L D
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2003
Institute of Physics
Subjects
Exact sciences and technology
Filters, zone plates, and polarizers
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optics
Physics
Optical losses
Silver
Manufacturing processes
Anodizing
Nanowire
Infrared radiation
Experimental study
Transmittance
Nanostructured materials
Optical polarizers
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Summary:A silver nanowire array micropolarizer within an anodic alumina membrane (AAM) was fabricated by anodization of pure Al foil and electrodeposition of Ag, respectively. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy investigations reveal that the nanowires are essentially single crystals, and have an average diameter of 90 nm. Spectrophotometer measurements show that the silver nanowire arrays embedded in the AAM can only transmit vertically polarized light to the wires. An extinction ratio of 25-26 dB and an average insertion loss of 0.77 dB in the wavelength range 1-2.2 microns, respectively were obtained. Therefore, the Ag nanowire/AAM can be used as a wire-grid type polarizer.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/14/1/305