Light-scattering, microwave

Light scattering techniques Optical rotation-polarimetry Refractive index Infrared spectro-photometry Infrared process analyzers Microwave spectroscopy Gamma ray spectroscopy Nuclear quadrupole moment... 

Muller, N., ibid. In Interferometry, Light Scattering, Microscopy, Microwave and Magnetic Resonance Spectroscopy Optical, Spectroscopic and Radioactivity Methods, Chapter VII. 

ID. Optical Methods of Analysis. Optical methods of analysis of reaction systems are very convenient where they can be applied. The optical properties which characterize the system may be the absorption at one or more particular wavelengths (in the ultraviolet, visible infrared, or microwave region), the refractive index of the mixture, the optical rotation of one or more species, the light-scattering properties of large molecules, or the fluorescent emission of one or more of the substances present. 

Another technique, called the microwave analog method, simulates the light scattering using microwave radiation [60, 61]. It takes advantage of the... 

VaiUon R, Geffrin JM, Eyraud C, Merchiers O, Sabouroux P, Lacroix B A novel implementation of a microwave analog to light scattering measurement set-up, f Quant Spectrosc Radiat rra s/112(ll) 1753-1760, 2011. 

Petrus (Peter) Josephus Wilhelmus Debye (1884-1966). .. was a Dutch physicist and physical chemist, who worked in the fields of quantum physics, X-ray analysis, microwave spectroscopy, and electrochemistry. Colloid science benefits from his contribution to X-ray and light scattering (in particular for aggregates— Eq. (4.39)— and concentrated suspensions—Eq. (2.24)), his work on electrolyte solutions (Debye-Hiickel theory), as well as his remarks to electrophoresis and his research on polymers. He was awarded the Nobel Prize in Chemistry in 1936 for his work on molecular structure through his investigations on dipole moments and the diffraction of X-rays and electrons in gases . 

Colorimetry, in which a sample absorbs visible light, is one example of a spectroscopic method of analysis. At the end of the nineteenth century, spectroscopy was limited to the absorption, emission, and scattering of visible, ultraviolet, and infrared electromagnetic radiation. During the twentieth century, spectroscopy has been extended to include other forms of electromagnetic radiation (photon spectroscopy), such as X-rays, microwaves, and radio waves, as well as energetic particles (particle spectroscopy), such as electrons and ions. ... 

Physical Properties Density average and standard deviation Size average and standard deviation Fluorescence Fluorescence excitation spectrum Scattered light spectrum Absorption spectrum (from microwave to UV) Raman spectrum Electrical conductivity, impedance Acoustic properties... 

Microwave scattering is an important analog technique for investigating scattering of visible light by single nonspherical particles. Because of the ratio of about 105 between microwave and visible wavelengths, arbitrarily oriented... 

Several examples of scattering by spherical and by nonspherical particles are collected in Fig. 13.8 calculations for randomly oriented prolate and oblate spheroids measured scattering of microwave radiation by a polydispersion of nonspherical particles and measured scattering of visible light by irregular... 

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