Refractive index matching for high light transmission composite systems

Autor: Erin Keaney, John Shearer, Joey Mead, Artee Panwar
Rok vydání: 2018
Předmět:
Zdroj: Journal of Composite Materials. 52:3299-3307
ISSN: 1530-793X
0021-9983
DOI: 10.1177/0021998318764787
Popis: Transparent optical polymer/filler systems can be produced into complex shapes for a range of applications, such as lenses, shields, and containers. This work used refractive index liquids as a model for polymer matrices to investigate the degree of refractive index match required to maintain high transmission in an inorganic-filled polymer system (cubic calcium fluoride with particle size of 1 to 5 µm) over the visible spectrum. It was determined that in order to achieve a transparent composite (>85% transmission with 10 mm pathlength) with this filler (using literature reported dispersion data), the materials must have a refractive index match within ±0.007 for 1.6 vol.% loading. With a loading of 3.1 vol.%, the matching range required was reduced to approximately ±0.002.
Databáze: OpenAIRE