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	Provedor de dados ArchiMer (4) Autor De La Chapelle, M. Lamy (4) Toury, T. (4) Peron, Olivier (3) Rinnert, Emmanuel (3) Compere, Chantal (2) Barchiesi, D. (1) Colas, Florent (1) Fremaux, B. (1) Guillot, N. (1) Kessentini, S. (1) Shen, H. (1) Mais... Palavra-chave Adhesion layer (1) Discrete dipole approximation (1) Gradient index optics (1) Lenses (1) Metamaterials (1) Microwave photonics (1) Nanocylinder (1) Nanoparticles (1) Optical design techniques (1) Optical fabrication (1) PAHs (1) Particle size (1) Polystyrene beads (1) Quantitative SERS sensors (1) Surface-enhanced raman scattering (1) Mais... Tipo do documento Text (4) Ano 2015 (1) 2011 (1) 2010 (2) País France (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Comparison of adhesion layers of gold on silicate glasses for SERS detection ArchiMer Colas, Florent; Barchiesi, D.; Kessentini, S.; Toury, T.; De La Chapelle, M. Lamy. Gold is one of the most widely used metals for building up plasmonic devices. Although slightly less efficient than silver for producing sharp resonance, its chemical properties make it one of the best choices for designing sensors. Sticking gold on a silicate glass substrate requires an adhesion layer, whose effect has to be taken into account. Traditionally, metals (Cr or Ti) or dielectric materials (TiO2 or Cr2O3 ) are deposited between the glass and the nanoparticle. Recently, indium tin oxide and (3-mercaptopropyl)trimethoxysilane (MPTMS) were used as a new adhesion layer. The aim of this work is to compare these six adhesion layers for surface- enhanced Raman scattering sensors by numerical modeling. The near-field and the far-field optical responses... Tipo: Text Palavras-chave: Surface-enhanced raman scattering; Adhesion layer; Nanocylinder; Discrete dipole approximation. Ano: 2015 URL: http://archimer.ifremer.fr/doc/00298/40907/40083.pdf Quantitative SERS sensors for environmental analysis of naphthalene ArchiMer Peron, Olivier; Rinnert, Emmanuel; Toury, T.; De La Chapelle, M. Lamy; Compere, Chantal. In the investigation of chemical pollutants, such as PAHs (Polycyclic Aromatic Hydrocarbons) at low concentration in aqueous medium, Surface-Enhanced Raman Scattering (SERS) stands for an alternative to the inherent low cross-section of normal Raman scattering. Indeed, SERS is a very sensitive spectroscopic technique due to the excitation of the surface plasmon modes of the nanostructured metallic film. The surface of quartz substrates was coated with a hydrophobic film obtained by silanization and subsequently reacted with polystyrene (PS) beads coated with gold nanoparticles. The hydrophobic surface of the SERS substrates pre-concentrates non-polar molecules such as naphthalene. Under laser excitation, the SERS-active substrates allow the detection and... Tipo: Text Ano: 2011 URL: http://archimer.ifremer.fr/doc/00026/13760/10890.pdf Surface enhanced Raman scattering optimization of gold nanocylinder arrays: Influence of the localized surface plasmon resonance and excitation wavelength ArchiMer Guillot, N.; Shen, H.; Fremaux, B.; Peron, Olivier; Rinnert, Emmanuel; Toury, T.; De La Chapelle, M. Lamy. We here emphasize that the surface enhanced Raman scattering (SERS) intensity has to be optimized by choosing the appropriate gold nanoparticles size for two excitation wavelengths; 632.8 and 785 nm. We discuss the role of the position and of the order of the localized surface plasmon resonance (LSPR) in such optimization for both wavelengths. At 632.8 nm, the best SERS intensity is reached for a LSPR located between the excitation and Raman wavelengths whereas at 785 nm, the LSPR should be placed outside this range. The third order of LSPR is shown to have no influence on the SERS intensity. (C) 2010 American Institute of Physics. [doi:10.1063/1.3462068] Tipo: Text Palavras-chave: Gradient index optics; Lenses; Metamaterials; Microwave photonics; Optical design techniques; Optical fabrication; Particle size. Ano: 2010 URL: http://archimer.ifremer.fr/doc/00011/12240/8970.pdf New SERS Substrates For Polycyclic Aromatic Hydrocarbon (PAH) Detection: Towards Quantitative SERS Sensors For Environmental Analysis ArchiMer Peron, Olivier; Rinnert, Emmanuel; Compere, Chantal; Toury, T.; De La Chapelle, M. Lamy. In the investigation of chemical pollutions, such as PAHs (Polycyclic Aromatic Hydrocarbons) at low concentration in aqueous medium, surface-enhanced Raman scattering (SERS) stands for an alternative to the inherent low cross-section of normal Raman scattering. Indeed, SERS is a very sensitive spectroscopic technique due to the excitation of the surface plasmon modes of the nanostructured metallic film. Tipo: Text Palavras-chave: Quantitative SERS sensors; Polystyrene beads; PAHs; Nanoparticles. Ano: 2010 URL: http://archimer.ifremer.fr/doc/00012/12328/9113.pdf Registros recuperados: 4 Primeira ... 1 ... Última

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