20.500.12556/RUL-168824 Optične lastnosti aerosoliziranega nigrozina Optical properties of aerosolised nigrosin Proučeval sem optične lastnosti vzorcev tankih plasti nigrozina na steklu. Zanimal me je predvsem njihov kompleksni lomni količnik, ki sem ga izmeril z optično elipsometrijo. Preko Lorentzovega modela in privzetka, da je snov dielektrik, sem opisal realni in imaginarni del dielektrične funkcije nigrozina. Aerosoliziran nigrozin tvori sferične delce, katerih velikost in obliko sem analiziral z vrstično elektronsko mikroskopijo. V ta namen sem uporabil filter, na katerem so bili napršeni nigrozinski delci. Njihove sipalne lastnosti lahko opišemo s teorijo sipanja za homogene sferične delce v zraku. Izračunani koeficient sipanja je pomemben pri določanju absorpcijskega koeficienta aerosola pri dani valovni dolžini, saj pri meritvah običajno analiziramo ekstinkcijo in ne le absorbcije. I studied the optical properties of thin layers of nigrosine on glass. I was mainly interested in their complex refractive index, which I measured with optical ellipsometry. Using the Lorentz model and the assumption that the material is a dielectric, I described the real and imaginary part of the dielectric function of nigrosine. Aerosolized nigrosine forms spherical particles whose sizes and shapes were analyzed by scanning electron microscopy. For this purpose, I used a filter on which nigrosine particles were sprayed. Their scattering properties can be described by the scattering theory for homogeneous spherical particles in air. The calculated scattering coefficient is important in determining the absorption coefficient of an aerosol at a given wavelength, since during measurements we usually analyze extinction and not just absorption. nigrozin optična spektroskopska elipsometrija vrstična elektronska mikroskopija teorija Mievega sipanja nigrosine optical spectroscopic ellipsometry scanning electron microscopy Mie scattering theory true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-04-26 08:15:05 2025-04-26 08:15:13 2025-05-06 08:30:58 0000-00-00 00:00:00 2025 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 150180 234186755 16656.pdf 16656.pdf 1 C88DE998AD7A8A680CC175D4F476357E ad8f1bf1d4a48f65851fc8e42785b528f28a79b3397c60da078ff5f36eb72001 ac47fdef-2264-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=209790 Fakulteta za matematiko in fiziko 0 0 0