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Scattering of non-uniform incident fields by long cylinders
(University of Bremen, 2003)
We investigate experimentally far-field scattering from cylinders with illumination non-uniform along the axis of the cylinder. Scattered intensity as a function of angle in two orthogonal directions is examined. Variation ...
Scattering from long prisms : a comparison between ray tracing combined with diffraction on facets and SVM
(University of Bremen, 2003)
A new model suitable for rapid computation of scattering on faceted dielectric objects such as ice crystals, which combines ray tracing with diffraction on flat facets, is tested against SVM. Phase functions and asymmetry ...
Fake ice and levitation
(2003)
Scalar field of non-paraxial Gaussian beams
(2000)
A family of closed form expressions for the scalar field of strongly focused Gaussian beams in oblate spheroidal coordinates is given. The solutions satisfy the wave equation and are free from singularities. The lowest ...
Compact optical trapping microscope using a diode laser
(2000)
Single beam gradient force optical trapping (laser tweezers) is increasing in importance as a technique for microparticle and cell manipulation and for the measurement of piconewton forces in aqueous media. An optical trap ...
Respirable asbestos detection using light scattering and magnetic alignment
(1998)
The detection of respirable asbestos fibres in the ambient environment has grown in importance as the health risks associated with this material have become more fully understood. However, there is no real-time method of ...