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Kirjasto - Tampereen teknillinen yliopisto

Browsing Dissertations by Department "Optoelectronics Research Centre"

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  • Rusu, Matei (2006-11-24)
    This thesis investigates novel methods of generating ultrashort optical pulses in the visible and ultraviolet wavelength ranges by frequency conversion and supercontinuum generation using mode-locked fiber lasers. Optimization ...
  • Peng, Changsi (2009-10-30)
    It is well-known that a small amount of nitrogen in InGaAs / GaAs quantum wells (QWs) causes a bandgap-bowing effect in the electronic band structure. While widening the spectral range of GaAs is a much desired consequence ...
  • Viheriälä, Jukka (2010-06-15)
    It is foreseen that nanoimprint lithography, NIL in short, will in the course of time have a strong impact on device applications which require precise and affordable nano-scale surface fabrication. My Thesis investigates ...
  • Orsila, Lasse (2008-04-25)
    This thesis investigates novel dispersion compensation methods for mode-locked fiber lasers and the dynamical properties of ytterbium and thulium-holmium gain materials. The emphasis is on dielectric thin film structures ...
  • Härkönen, Antti (2008-03-27)
    Optically-pumped semiconductor disk lasers are light sources that combine traditional solid state disk laser architecture with gain material made of semiconductor nano-layers. The laser design offers an attractive oppportunity ...
  • Herda, Robert (2006-12-01)
    This thesis studies the design of Semiconductor Saturable Absorber Mirrors (SESAMs) and their properties in mode-locked fiber lasers. The recovery times of SESAMs were controlled by ion bombardment and metamophoric growth. ...
  • Kivistö, Samuli (2010-06-11)
    Ultrafast fiber lasers with superb pulse and beam quality are becoming important in various fields of applications including high-precision material processing, bio-medicine, fiber optical communications, and ranging. This ...
  • Pakarinen, Janne (2009-09-25)
    In this Thesis, technologically important III-V semiconductors are studied. Structural and electronic properties of bismuth (Bi) stabilized InP(100) and GaAsN(100) are explored. Atomic models for the Bi-stabilized surfaces ...
  • Gomes, Luis (2006-01-27)
    In this thesis we report on the experimental studies on the generation of ultrashort pulses from mode-locked ytterbium fiber lasers operating at 1 mm wavelength region. Different fiber cavities, all with a linear geometry, ...
  • Saarinen, Mika (2002-09-27)
    This Thesis is concerned with resonant cavity light-emitting diodes (RCLEDs) and vertical-cavity surface-emitting lasers (VCSELs), which oscillate in the visible spectral range. It presents results obtained from studies ...