Создание методом шаблонного синтеза массивов 1D магнитно-оптических наноструктур для усиления сигнала комбинационного рассеяния света

Abstract

Ion-track membranes based on polyethylene terephthalate with a thickness of 12 μm and a pore diameter of 100 to 400 nm were used as templates for the design of arrays of 1D magneto-optical nanostructures. Two types of magnetic-optical nanostructures are obtained. The first type is layered nanowires with alternating nickel and silver. The second type is gold-plated nickel nanotubes. The structure and morphology of the nanostructures were studied by SEM and X-ray diffraction analysis. The possibility of using arrays to amplify the Raman signal is demonstrated by the example of the analyte methylene blue with a concentration of up to 10-6 M, the average amplification factor was 104. This makes arrays of 1D magneto-optical nanostructures promising for use of detecting low concentrations of substances (viruses, dangerous poisons, organic compounds) in Raman spectroscopy.