Novel Preparation Method of Metal Particles Dispersed in Polymer Films   and Their Third-Order Optical Nonlinearities

Ogawa, Shuichiro; Hayashi, Yoshio; Kobayashi, Norio; Tokizaki, T.; Nakamura, Arao

doi:10.1143/jjap.33.l331

Cited by 72 publications

(39 citation statements)

References 6 publications

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“…Therefore, at this optical frequency p, (3) eff( ) of the nano-composite can overtake giant values as a result of the enhancement reinforced by the power 4 of the form factor f( ) compared to those found in classical bulk materials. Degenerate four-wave mixing as well as Z-scan measurements in Ag and Au as well as Cu based nanocomposites consistently revealed the colossal third order nonlinear optical susceptibilities (3) eff( ) of about 10 -7 -10 -9 esu in the vicinity of the surface plasmon resonance, with response times of the order of picoseconds, Table 1, (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32). This enhanced (3) eff( ) offered by this new class of nanocomposites is opening new perspectives in emerging nanophotonics sector.…”

Section: Introductionmentioning

confidence: 81%

Surface Plasmon Resonance Tunability in Au−VO2 Thermochromic Nano-composites

Mâaza

Nemraoui²,

Sella

et al. 2005

Gold Bull

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A new type of photo-active nano-composite material appropriate for Ultra-fast Nonlinear Optical (3) ( ) applications has been synthesized and optically characterized. Compared to standard noble metal particles-oxide nano-composites exhibiting a superior effective (3) ( ) due to the enhancement of the local electric field, these Au-VO 2 nano-composites display an additional reversibly tunable surface plasmon frequency under external temperature stimuli. Such a smart plasmon tunability is correlated to the Mott's type semiconducting/metallic 1st order transition of the host VO 2 matrix. The nano-gold surface plasmon wavelength shifts reversibly from 645 nm to 598nm when the Au-VO 2 nano-composites temperature varies from 25°C to 120°C.

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Section: Introductionmentioning

confidence: 81%

Surface Plasmon Resonance Tunability in Au−VO2 Thermochromic Nano-composites

Mâaza

Nemraoui²,

Sella

et al. 2005

Gold Bull

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“…In biology and biochemistry, nanoparticles have attracted much attention. Especially, PNPs with size in the range of 10 to 50 nm are most attractive for practical reasons [2][3][4][5][6]. Cancer killed 7.9 million people worldwide in 2007 [7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of synthesized platinum nanoparticles on the MCF-7 and HepG-2 cancer cell lines

et al. 2013

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Platinum nanoparticles (PNPs) were synthesized by chemical reduction of potassium hexachloroplatinate (IV) with trisodium citrate under vigorous stirring and addition of sodium dodecyl sulfate as stabilizer reagent. Reducing agent was chosen depending on the oxidation reactions and potential values of the chemical materials used in the experiment. The aim of this study is to investigate the effects of PNPs on the different cancer cell lines and cytotoxicity study of this nanomaterial. The morphology of PNPs was investigated by scanning electron microscope (XL30, Philips Electronics, Amsterdam, The Netherlands) with the ability to perform elemental analysis by EDX. Malvern Zetasizer 3000 HSA (Malvern Instruments, Worcestershire, UK) was used to determine the distribution of particle size and zeta potential of PNPs. The cytotoxicity property of the nanoparticles was evaluated by MTT assay on MCF-7 and HepG-2 cell lines, and the cytotoxic concentration 50% values were determined for 24 h.

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“…Typically, the absorption maximum for the SPR peak of Ag nanoparticles in films are observed at 410 nm. 6,[8][9][10][11][12] Accordingly, the observance of SPR peaks indicated that the size of the Ag nanoparticles are much smaller than the mean free path of the electrons in bulk silver (ca. 52 nm), 20 as shown in Figure 2.…”

Section: Nylon 6/ag Compositesmentioning

confidence: 99%

“…6,8,9 Similarly as that of Au nanoparticles, it is well known that Ag nanoparticles possess interesting optical properties: for example, surface plasmon resonance (SPR) in the state of nanoparticle. 6,[8][9][10][11][12] Additionally, Ag nanoparticles in nylon 11/Ag can be converted into Ag 2 S nanoparticles by exposing to a mix- † To whom correspondence should be addressed.…”

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confidence: 99%

Introduction of Ag and Ag2S Nanoparticles into Nylon 6 Film and Fiber

Gotoh

Kanno

Fujimori

et al. 2003

Polym J

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ABSTRACT:Nylon 6 doped with Ag nanoparticles (nylon 6/Ag) was prepared by immersion of nylon 6 in aqueous AgNO 3 solution followed by reductive treatment by heating under H 2 gas or immersing in an aqueous NaBH 4 solution. As a result of either reductions, Ag nanoparticles below 10 nm in diameter were successfully dispersed within the nylon 6 matrix. The Ag content and the dispersion state of the Ag nanoparticles can be varied by the concentration of the AgNO 3 solutions and the reduction methods, respectively. From the results of the absorbed Ag + content in nylon 6via immersion in AgNO 3 solution, nylon 6 was found to have some affinity for silver ion. Nylon 6 doped with Ag 2 S nanoparticles (nylon 6/Ag 2 S) was also prepared by immersion in AgNO 3 aqueous solution and the following immersion of Na 2 S aqueous solution. Ag 2 S particles having several nanometers in diameter were dispersed in nylon 6. The nylon 6/Ag 2 S film showed strong photoluminescence in the near infrared region. KEY WORDS Nylon 6 / Ag / Ag 2 S / Nanocomposite / Nanoparticle / Organic/inorganic composite materials consisting of polymers doped with metal or semiconductor nanoparticles, which possess characteristic optical properties, such as non-linear optical and laser amplification properties, have attracted increasing interest for potential application as novel photonics devices. [1][2][3][4] In contrast to inorganic matrices such as glasses or ceramics, the use of organic polymers as a matrix has the advantages of processability and ease of handling of the composite materials. 2 Specifically, the polymer matrices can be molded at lower temperatures, are generally flexible, and show higher toughness than inorganic matrices. Furthermore, various inorganic compounds for doping components can be readily introduced in the polymer matrices using in-situ reactions under mild conditions. 2

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Novel Preparation Method of Metal Particles Dispersed in Polymer Films and Their Third-Order Optical Nonlinearities

Cited by 72 publications

References 6 publications

Surface Plasmon Resonance Tunability in Au−VO2 Thermochromic Nano-composites

Surface Plasmon Resonance Tunability in Au−VO2 Thermochromic Nano-composites

Evaluation of synthesized platinum nanoparticles on the MCF-7 and HepG-2 cancer cell lines

Introduction of Ag and Ag2S Nanoparticles into Nylon 6 Film and Fiber

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