Sökning: "Tillämpad fysik"

Visar resultat 26 - 30 av 339 avhandlingar innehållade orden Tillämpad fysik.

1. 26. Fibre Bragg Gratings : Characterization, Realization and Simulation

   Författare :Ingemar Petermann; Ari Friberg; Sten Helmfrid; Morten Ibsen; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bragg gratings; optical fibres; optical fibre components; Physics; Fysik;

   Sammanfattning : The main topic of this thesis is realization and characterization of fibre Bragg gratings. A novel versatile grating fabrication technique is developed and a number of gratings are realized, showing the potential of the system. LÄS MER

3. 27. Studies in plausibility theory, with applications to physics

   Författare :Piero Giovanni Luca Porta Mana; Gunnar Björk; Sergei Ya. Kilin; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bayesian probability theory; quantum theory; state assignment; state estimation; Physics; Fysik;

   Sammanfattning : The discipline usually called `probability theory' can be seen as the theory which describes and sets standard norms to the way we reason about plausibility. From this point of view, this `plausibility theory' is a province of logic, and the following informal proportion subsists: plausibility theory is to the common notion of `plausibility', as deductive logic is to the common notion of `truth'. LÄS MER

4. 28. Photonic Qubits for Quantum Communication : Exploiting photon-pair correlations; from theory to applications

   Författare :Maria Tengner; Anders Karlsson; Alexei Trifonov; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum communication; photon-pair sources; entanglement; Physics; Fysik;

   Sammanfattning : For any communication, the conveyed information must be carried by some physical system. If this system is a quantum system rather than a classical one, its behavior will be governed by the laws of quantum mechanics. LÄS MER

5. 29. Investigation of 234U(n,f) with a Frisch-grid ionization chamber

   Författare :Ali Al-Adili; Franz-Josef Hambsch; Stephan Pomp; Richard Brenner; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

   Sammanfattning : This work treats three topics. The main topic concerns neutron-induced fission of 234U. The main goal is to investigate the fission-fragments properties  as a function of the incident neutron energy. The study was carried out using a twin Frisch-grid ionization chamber. LÄS MER

7. 30. An upgrade of the SCANDAL facility for neutron scattering measurements at 175 MeV

   Författare :Pernilla Andersson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

   Sammanfattning : The experimental setup SCANDAL, used for measurements of the differential cross section for elastic neutron scattering, has been upgraded with new Na doped CsI scintillating detectors for measurements at 175 MeV. Two experimental campaigns have been carried out, collecting data on three different nuclei: iron, bismuth and silicon. LÄS MER