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Kirjasto - Tampereen teknillinen yliopisto

Browsing Research publications by Issue Date

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  • Jääskeläinen, Kaija (2009)
  • Valta, Arja; Lepistö, Kirsi (2008)
    Licensing digital resources at technical universities has increased over past ten years. The process is a subject of the constant change because the system development and the service production have not been established. ...
  • Huiku, Leena (2009-06-04)
    TUT Library has been active in analysing the research activities and research quality at university’s departments and the staff since 1980’s. This poster outlines the process of the information management of the research ...
  • Rantala, Tero; Lehtilä, Tapani; Harjala, Soile; Paananen, Juhani (2001-03-28)
    Tampere University of Technology implemented wireless internet network for public use in the library 1999. In this presentation we are reporting technical solutions and experiences of it. Portable computers with a wireless ...
  • Peltotalo, Jani; Harju, Jarmo; Väätämöinen, Lassi; Bouazizi, Imed; Curcio, Igor D. D. (2010-01-06)
    Peer-to-peer is emerging as a potentially disruptive technology for content distribution in the mobile Internet. In addition to the already well-known peer-to-peer file sharing, real-time peer-to-peer streaming is gaining ...
  • H'Dhili, Fekhra; Okamoto, Takayuki; Simonen, Janne; Kawata, Satoshi (2011-01-15)
    We report on a two dimensional plasmonic structure that utilizes an Ag film for the generation of surface plasmons and a layer of the organic semiconductor tri(8-hydroxyquinoline) aluminum (Alq3) doped with the laser dye ...
  • Kuwata-Gonokami, Makoto; Saito, Nobuyoshi; Ino, Yusuke; Kauranen, Martti; Jefimovs, Konstantins; Vallius, Tuomas; Turunen, Jari; Svirko, Yuri (2005)
    We examine the spectral dependence in the visible frequency range of the polarization rotation of two-dimensional gratings consisting of chiral gold nanostructures with subwavelength features. The gratings, which do not ...
  • Husu, Hannu; Canfield, Brian K.; Laukkanen, Janne; Bai, Benfeng; Kuittinen, Markku; Turunen, Jari; Kauranen, Martti (2008)
    Second-harmonic generation from T-shaped gold nanodimers with nanogaps has different efficiencies for left- and right-hand circularly polarized fundamental light. The difference arises from the chiral symmetry breaking of ...
  • Canfield, Brian K.; Laiho, Kaisa; Kauranen, Martti (2007)
    We computationally investigate polarized second-harmonic generation (SHG) of a spectrally broad femtosecond pulse following transmission through traditional quarter wave plates (QWPs). Because the sideband modes of a ...
  • Priimägi, Arri; Kaivola, Matti; Rodriguez, Francisco J.; Kauranen, Martti (2007)
    The authors demonstrate that photoinduced birefringence in azo-dye-doped polymers is strongly enhanced by hydrogen bonding between the guest molecules and the polymer host. The primary mechanism behind the enhancement is ...
  • Wang, Fu Xiang; Rodriguez, Francisco J.; Albers, Willem M.; Ahorinta, Risto; Sipe, J.E.; Kauranen, Martti (2009)
    We use two-beam second-harmonic generation to separate the surface (electric dipole origin) and bulk (magnetic dipole and electric quadrupole origin) contributions to the second-order nonlinear optical response of an ...
  • Volkov, S.N.; Dolgaleva, Ksenia; Boyd, Robert W.; Jefimovs, Konstantins; Turunen, Jari; Svirko, Yuri; Canfield, Brian K.; Kauranen, Martti (2009)
    We prepare diffractive planar arrays of metal nanoparticles that are chiral because of either the shape of individual particles (“molecular” chirality) or the orientation of achiral particles in the array (“structural” ...
  • Priimägi, Arri; Shevchenko, Andriy; Kaivola, Matti; Rodriguez, Francisco J.; Kauranen, Martti; Rochon, Paul (2010)
    We present a novel materials concept for optical inscription of stable birefringent optical elements into guest–host type polymers by making use of chromophore aggregation. The method is based on photoalignment of azobenzene ...
  • Wang, Fu Xiang; Siltanen, Mikael; Kauranen, Martti (2007)
    Second-harmonic generation from surfaces and thin films can be described by up to three nonlinear expansion coefficients, which are associated with the quadratic combinations of the p- and s-polarized components of the ...
  • Kujala, Sami; Canfield, Brian K.; Kauranen, Martti; Svirko, Yuri; Turunen, Jari (2007)
    We provide experimental evidence of higher multipole (magnetic dipole and electric quadrupole) radiation in second-harmonic (SH) generation from arrays of metal nanoparticles. Fundamental differences in the radiative ...
  • Rao, Satish; Huttunen, Mikko J.; Kontio, Juha M.; Mäkitalo, Jouni; Viljanen, Milla-Riina; Simonen, Janne; Kauranen, Martti; Petrov, Dmitri (2010)
    We present two silver nanocones separated by 450 nm, well beyond the typical gap spacing of coupled nanoantennas, and connected by a metal bridge to facilitate plasmonic coupling between them. The tip-enhanced Raman ...
  • Kujala, Sami; Canfield, Brian K.; Kauranen, Martti; Svirko, Yuri; Turunen, Jari (2008)
    We present a multipolar tensor analysis of second-harmonic radiation from arrays of noncentrosymmetric L-shaped gold nanoparticles. Our approach is based on the fundamental differences in the radiative properties of electric ...
  • Saari, A.; Genty, G.; Siltanen, M.; Karvinen, P.; Vahimaa, P.; Kuittinen, M.; Kauranen, M. (2010)
    We demonstrate a purely dielectric resonant waveguide structure that enhances the efficiency of second-harmonic generation by a factor of at least 5500 compared to a flat reference surface in the same geometry. We also ...
  • Siltanen, Mikael; Leivo, Samuli; Voima, Pauliina; Kauranen, Martti; Karvinen, Petri; Vahimaa, Pasi; Kuittinen, Markku (2007)
    The authors demonstrate that a dielectric resonant waveguide grating can enhance optical second-harmonic generation by a factor of 550 compared to a similar flat surface. Their structure, which consists of purely dielectric ...
  • Husu, Hannu; Mäkitalo, Jouni; Laukkanen, Janne; Kuittinen, Markku; Kauranen, Martti (2010)
    We present an extensive experimental and theoretical study of the particle plasmon resonances of L-shaped gold nanoparticles. For the small characteristic size of the particles, we observe more higher-order resonances than ...