The refractive index of submillimeter glass beads has been measured by means of a novel, to our knowledge, procedure with reference liquids that does not require close index matching and therefore avoids the use of toxic compounds for high-index glasses (i.e., n ≥ 1.8). The method is based on the analysis of the light refracted by a monolayer of beads in comparison with ray-tracing simulations. For the three different types of glass beads investigated a satisfactory fit is achieved by the assumption of a radial variation of the refractive index inside the beads. This is ascribed to the tensile and compressive stresses originating inside the beads during rapid solidification of the glass. © 1997 Optical Society of America.

Sarcinelli, F., Pizzoferrato, R., Scudieri, F. (1997). Study of the refractive index of microscopic glass beads by light-refraction analysis. APPLIED OPTICS, 36(34), 8999-9004.

Study of the refractive index of microscopic glass beads by light-refraction analysis

PIZZOFERRATO, ROBERTO;SCUDIERI, FOLCO
1997-01-01

Abstract

The refractive index of submillimeter glass beads has been measured by means of a novel, to our knowledge, procedure with reference liquids that does not require close index matching and therefore avoids the use of toxic compounds for high-index glasses (i.e., n ≥ 1.8). The method is based on the analysis of the light refracted by a monolayer of beads in comparison with ray-tracing simulations. For the three different types of glass beads investigated a satisfactory fit is achieved by the assumption of a radial variation of the refractive index inside the beads. This is ascribed to the tensile and compressive stresses originating inside the beads during rapid solidification of the glass. © 1997 Optical Society of America.
1997
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
English
Glass beads; Ray tracing; Refractive index; Atomic and Molecular Physics, and Optics
Sarcinelli, F., Pizzoferrato, R., Scudieri, F. (1997). Study of the refractive index of microscopic glass beads by light-refraction analysis. APPLIED OPTICS, 36(34), 8999-9004.
Sarcinelli, F; Pizzoferrato, R; Scudieri, F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/130845
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