Absorption and scattering of light by small particles by Craig F. Bohren, Donald R. Huffman

Absorption and scattering of light by small particles



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Absorption and scattering of light by small particles Craig F. Bohren, Donald R. Huffman ebook
Format: djvu
ISBN: 047105772X, 9780471057727
Page: 533
Publisher: John Wiley & Sons


Even though Mie theory offers convenient and fast way of solving light scattering problem by homogeneous spherical particles, there are other techniques, such as discrete dipole approximation, FDTD, T -matrix, which can also be used for such tasks. Usually, if a laser beam hits a small particle in its path, the light is scattered backwards, which in turn pushes the particle forward. And there was I under the impression that particles cause global cooling, – so now they'll have to figure out the various absorption rates of all the different airborne particles in the complete Troposphere. Waves, plasmons, near-field scattering. As light is transmitted through the water it is scattered and absorbed by the particles. When used as an ingredient in sunscreen, Zinc Oxide, a mineral powder, is claimed to sit on the skin's surface scattering and absorbing ultraviolet rays without being absorbed into the skin. Light relative to S-polarized light. It is non-irritating and non-allergenic, therefore it is claimed to be very suitable for Because of its small particles, the nano size Zinc Oxide does not scatter light and therefore does not appear white. The light can also be absorbed by water and particles like small algae that live in the ocean. With many smaller particles in the water the light will scatter relatively uniformly and the scatter pattern will be consistent over time. When molecules or particles scatter light, it is reflected in many different directions. Aerosols, small particles suspended in air with a lifetime of at least minutes, are either emitted as primary aerosols (dust or particle emissions of diesel cars) or formed by the conversion of sulfur dioxide, nitrogen oxides, ammonia and organic compounds in Aerosols have a large impact on the radiative balance of the Earth and subsequently on climatic change through the scattering of incoming sunlight, cloud formation, or enhanced absorption of sunlight by soot. Fluorescence is a process in which some of the incident radiation is absorbed by the particle and is then later re-emitted as spontaneous emission [11]. "Mie solutions" (infinite series) to scattering, absorption and phase function of electromagnetic waves by a homogeneous sphere. For optical interactions that are confined to the particle surface (e.g., opaque particles) the optical signal depends on the particle surface area and varies as the square of the particle radius. For opti- cal interactions that are ..