1. Evaluation of small scattering defects densities by laser scattering tomography: application to levitated glasses
- Author
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P. Gall-Borrut, P. Falgayrettes, Michel Castagne, D. Perret, L. Nativel, B. Drevet, Centre d'Electronique et de Micro-optoélectronique de Montpellier (CEM2), and Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
02 engineering and technology ,Iterative reconstruction ,01 natural sciences ,Light scattering ,Laser beam applications ,Optics ,0103 physical sciences ,medicine ,Optical tomography ,Instrumentation ,010302 applied physics ,Defect characterization ,Experimental study ,medicine.diagnostic_test ,Chemistry ,Scattering ,business.industry ,Resolution (electron density) ,Defect density ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,[SPI.TRON]Engineering Sciences [physics]/Electronics ,Electronic, Optical and Magnetic Materials ,Characterization (materials science) ,Optical method ,Amorphous material ,Levitation ,Glass ,Tomography ,0210 nano-technology ,business ,Laser beams - Abstract
International audience; A specific experimental Laser Scattering Tomography (LST) acquisition procedure is presented. It is adapted to the characterization of materials containing scattering defects ranging from 1 to 102/mm3. The technique makes it possible to obtain good resolution within a volume chosen to contain a statistically significant defect density. This method is used to show that the gas levitation technique makes it possible to significantly decrease scattering defects in glasses. In parallel, individual study of defects in such glasses is also presented.
- Published
- 2004