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Showing result 1 - 5 of 134 swedish dissertations matching the above criteria.

2. 1. Short Pulses in Engineered Nonlinear Media

   Author : Stefan Holmgren; Fredrik Laurell; Derryck Reid; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; nonlinear optics; KTiOPO4; frequency conversion; mode-locked lasers; ultra-fast lasers; visible lasers; short pulses; ultrafast nonlinear optics; diagnostic applications of nonlinear optics; nonlinear optical materials; Physics; Fysik;

   Abstract : Short optical pulses and engineered nonlinear media is a powerful combination. Mode locked pulses exhibit high peak powers and short pulse duration and the engineered ferro-electric KTiOPO4 facilitates several different nonlinear processes. READ MORE

4. 2. Integrated Nonlinear Optics in Silicon Nitride Waveguides

   Author : Clemens Krückel; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; integrated optics devices; nonlinear optics materials; four-wave mixing; nonlinear optical signal processing; wavelength conversion devices; nanostructure fabrication;

   Abstract : Current nanofabrication techniques allow patterning of optical waveguides with submicron cores. This results in strong confinement of light, which leads to high optical intensities. READ MORE

5. 3. Nonlinear response in engineered optical materials

   Author : Gustav Strömqvist; Valdas Pasiskevicius; Peter Smith; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; nonlinear optics; nonlinear index of refraction; double tungstates; periodic poling; KTiOPO4; quasi-phase matching; parametric down-conversion; mirrorless optical parametric oscillators;

   Abstract : Material and structure engineering are increasingly employed in active optical media,in this context defined as media capable of providing laser or/and optical parametric gain. For laser materials, the main aim of the engineering is to tailor the absorption and emission cross sections in order to optimise the laser performance. READ MORE

6. 4. Dynamics of multiphoton processes in nonlinear optics and x-ray spectroscopy

   Author : Ji-Cai Liu; Faris Gel'mukhanov; Richard Taieb; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; nonlinear optics; x-ray spectroscopy; multiphoton processes; pulse propagation; Atomic and molecular physics; Atom- och molekylfysik; Spectroscopy; Spektroskopi;

   Abstract : New generations of ultrashort and intense laser pulses as well ashigh power synchrotron radiation sources and x-ray free electronlasers have promoted fast developments in nonlinear optics andx-ray spectroscopy.The new experimental achievements and the appearance of varieties of novelnonlinear phenomena call for further development of theories. READ MORE

7. 5. Signal restoration with the nonlinear optical loop mirror

   Author : Beng-Erik Olsson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fiber couplers; extinction ratio; pulse extraction; nonlinear filtering; noise filtering; nonlinear optics; amplified spontaneous emission; optical switching; signal polarization independent noise filter; nonlinear optical loop mirror; sagnac interferometer; high intensity optical pulses;

   Abstract : .... READ MORE