Characterization of anisotropic nano-particles by using depolarized dynamic light scattering in the near field
| العنوان: | Characterization of anisotropic nano-particles by using depolarized dynamic light scattering in the near field |
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| المؤلفون: | Albert P. Philipse, Stefano Sacanna, Domenico Salerno, Valeria Cassina, Doriano Brogioli, Fabrizio Croccolo, Francesco Mantegazza |
| المساهمون: | Brogioli, D, Salerno, D, Cassina, V, Sacanna, S, Philipse, A, Croccolo, F, Mantegazza, F, Physical and Colloid Chemistry, Dep Scheikunde, Sub Physical and Colloid Chemistry |
| المصدر: | Optics Express |
| بيانات النشر: | The Optical Society, 2009. |
| سنة النشر: | 2009 |
| مصطلحات موضوعية: | Physics, Stray light, business.industry, FIS/07 - FISICA APPLICATA (A BENI CULTURALI, AMBIENTALI, BIOLOGIA E MEDICINA), FOS: Physical sciences, Rotational diffusion, Near and far field, light scattering, 01 natural sciences, Atomic and Molecular Physics, and Optics, Light scattering, 010309 optics, Light intensity, symbols.namesake, Fourier transform, Optics, Dynamic light scattering, 0103 physical sciences, symbols, 010306 general physics, Anisotropy, business, Physics - Optics, Optics (physics.optics) |
| الوصف: | Light scattering techniques are widely used in many fields of condensed and sof t matter physics. Usually these methods are based on the study of the scattered light in the far field. Recently, a new family of near field detection schemes has been developed, mainly for the study of small angle light scattering. These techniques are based on the detection of the light intensity near to the sample, where light scattered at different directions overlaps but can be distinguished by Fourier transform analysis. Here we report for the first time data obtained with a dynamic near field scattering instrument, measuring both polarized and depolarized scattered light. Advantages of this procedure over the traditional far field detection include the immunity to stray light problems and the possibility to obtain a large number of statistical samples for many different wave vectors in a single instantaneous measurement. By using the proposed technique we have measured the translational and rotational diffusion coefficients of rod-like colloidal particles. The obtained data are in very good agreement with the data acquired with a traditional light scattering apparatus. Comment: Published in Optics Express. This version has changes in bibliography |
| وصف الملف: | application/pdf |
| تدمد: | 1094-4087 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14969ff61ee3acdbfd06b76808620fecTest https://doi.org/10.1364/oe.17.001222Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....14969ff61ee3acdbfd06b76808620fec |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10944087 |
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