25 research outputs found

    Nonlinear optical sensors on metal nanoparticles synthesized by ion implantation

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    Recent results on ion synthesis and nonlinear optical properties of metal nanoparticles in various dielectrics are presented. Copper and silver nanoparticles were fabricated in silica and soda lime glasses by low energy ion implantation. The nonlinear optical characteristics of nanoparticle composite materials, which may be suited for optical sensing, were studied by applying Z-scan transmittance measurements. They were performed in the near IR area at a wavelength of 1,064 nm, using picosecond pulses of a Nd:YAG laser. Optical nonlinearities of the metal nanoparticles in various substrates such as a nonlinear refraction and a nonlinear susceptibility were detected. It was shown that the influence of the dielectric environment (optical constants) around these nanoparticles considerably changes the nonlinear optical response of the composite materials. Ultrafast optical sensors based on nonlinear effects in metal nanoparticles are discussed. © 2011 Springer Science+Business Media B.V

    APPLIED OPTICS

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    The nonlinear absorption of nanocomposite layers based on ZnO implanted with Cu+ ions with an energy of 160 keV in implantation doses of 10(16) and 10(17) ions/cm(2) was investigated. The values of the nonlinear absorption coefficient were measured by the Z-scan method at a wavelength of 532 nm by use of nanosecond and picosecond laser pulses. Possible optical applications of these materials are discussed. (c) 2005 Optical Society of America

    Nonlinear optical sensors on metal nanoparticles synthesized by ion implantation

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    Recent results on ion synthesis and nonlinear optical properties of metal nanoparticles in various dielectrics are presented. Copper and silver nanoparticles were fabricated in silica and soda lime glasses by low energy ion implantation. The nonlinear optical characteristics of nanoparticle composite materials, which may be suited for optical sensing, were studied by applying Z-scan transmittance measurements. They were performed in the near IR area at a wavelength of 1,064 nm, using picosecond pulses of a Nd:YAG laser. Optical nonlinearities of the metal nanoparticles in various substrates such as a nonlinear refraction and a nonlinear susceptibility were detected. It was shown that the influence of the dielectric environment (optical constants) around these nanoparticles considerably changes the nonlinear optical response of the composite materials. Ultrafast optical sensors based on nonlinear effects in metal nanoparticles are discussed. © 2011 Springer Science+Business Media B.V

    Nonlinear optical sensors on metal nanoparticles synthesized by ion implantation

    Get PDF
    Recent results on ion synthesis and nonlinear optical properties of metal nanoparticles in various dielectrics are presented. Copper and silver nanoparticles were fabricated in silica and soda lime glasses by low energy ion implantation. The nonlinear optical characteristics of nanoparticle composite materials, which may be suited for optical sensing, were studied by applying Z-scan transmittance measurements. They were performed in the near IR area at a wavelength of 1,064 nm, using picosecond pulses of a Nd:YAG laser. Optical nonlinearities of the metal nanoparticles in various substrates such as a nonlinear refraction and a nonlinear susceptibility were detected. It was shown that the influence of the dielectric environment (optical constants) around these nanoparticles considerably changes the nonlinear optical response of the composite materials. Ultrafast optical sensors based on nonlinear effects in metal nanoparticles are discussed. © 2011 Springer Science+Business Media B.V

    Nonlinear optical sensors on metal nanoparticles synthesized by ion implantation

    No full text
    Recent results on ion synthesis and nonlinear optical properties of metal nanoparticles in various dielectrics are presented. Copper and silver nanoparticles were fabricated in silica and soda lime glasses by low energy ion implantation. The nonlinear optical characteristics of nanoparticle composite materials, which may be suited for optical sensing, were studied by applying Z-scan transmittance measurements. They were performed in the near IR area at a wavelength of 1,064 nm, using picosecond pulses of a Nd:YAG laser. Optical nonlinearities of the metal nanoparticles in various substrates such as a nonlinear refraction and a nonlinear susceptibility were detected. It was shown that the influence of the dielectric environment (optical constants) around these nanoparticles considerably changes the nonlinear optical response of the composite materials. Ultrafast optical sensors based on nonlinear effects in metal nanoparticles are discussed. © 2011 Springer Science+Business Media B.V

    St. John's Daily Star, 1920-11-22

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    The St. John's Daily Star was published daily except Sunday between 17 April 1915 - 23 July 1921

    Western Star, 1913-03-05

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    The Western Star began publication on Newfoundland's west coast on 4 April 1900, appearing weekly with brief semiweekly periods up to 1952, when it became a daily. As of 17 April 2019 it continues as a free weekly community paper

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