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REVISTA DE CHIMIE
https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie, Volume 63, Issue 1, pp. (2012)




BEATRICE-CARMEN ZELINSCHI, CARMEN-FELICIA DASCALU, DANA ORTANSA DOROHOI Interferential Wood Filters with Chemical Pure Quartz from Maramures Area as Anisotropic Layer

Abstract:

Preliminary XRD and optical studies regarding the purity and the transparence of some quartz samples provided from different Romanian mountains areas, conducted us to choose the quartz crystal from Maramures area in the design of some Wood interferential optical filters working in the visible range. The interferential Wood filter consists from an anisotropic layer between two crossed polarizers. For the selected quartz crystal, the birefringence dispersion can be neglected. Consequently, the value of the birefringence measured at l =589.3nm was used in the simulation process. A decrease in the band-width of the transmission bands was evidenced when the thickness of the anisotropic layer increased. Keywords: quartz, birefringence, XRD, transmission factor, Wood filter

Issue: 2012 Volume 63, Number 1
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