<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Coherence-Gated Wave-Front Sensing in Strongly Scattering Samples"^^ . "In this thesis coherence-gated wave-front sensing (CGWS), a new approach for measuring wave-fronts in strongly scattering samples, is presented. This method combines Shack-Hartmann wave-front sensing and phase shifting interferometry (PSI). It employs virtual lenses to mimic the function of a conventional Shack-Hartmann sensor. The use of a modal estimation algorithm allows an approximation of the measured wave-front with a linear combination of Zernike polynomials up to the fifth radial degree. The principle of CGWS is tested by measuring two wave-front aberrations, defocus and astigmatism, for a mirror as a sample and a strongly scattering sample. The results are compared to theoretical models. The main advantage of CGWS is the discrimination against light backscattered from outside the focal region. A further advantage is the increase in the effective detection sensitivity. The capabilities of CGWS are demonstrated with wave-front measurements in scattering samples in the presence of background light that is dominant by about three orders of magnitude. In various microscopy applications, the ability to pre-emptively correct the wave-front, employing CGWS measurement data, may allow improvements of the optical focus and thus enhance the resolution and depth penetration in tissue considerably."^^ . "2004" . . . . . . . . "Marcus"^^ . "Feierabend"^^ . "Marcus Feierabend"^^ . . . . . . "Coherence-Gated Wave-Front Sensing in Strongly Scattering Samples (PDF)"^^ . . . "MarcusFeierabendPhDThesis.pdf"^^ . . . "Coherence-Gated Wave-Front Sensing in Strongly Scattering Samples (Other)"^^ . . . . . . "small.jpg"^^ . . . "Coherence-Gated Wave-Front Sensing in Strongly Scattering Samples (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Coherence-Gated Wave-Front Sensing in Strongly Scattering Samples (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Coherence-Gated Wave-Front Sensing in Strongly Scattering Samples (Other)"^^ . . . . . . "lightbox.jpg"^^ . . "HTML Summary of #4836 \n\nCoherence-Gated Wave-Front Sensing in Strongly Scattering Samples\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .