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Proceedings Paper

Simple approach to refractive index measurements of polystyrene microspheres (Conference Presentation)

Paper Abstract

We present a simple approach to determine the refractive index of polystyrene microspheres which are frequently utilized as scatterers in turbid phantoms. The approach is based on Mie theory and transmittance measurements of polystyrene microspheres suspended in media with different refractive indices allowing simultaneous optimization of the diameter and refractive index of the polystyrene microspheres. The refractive index of the medium is changed through the addition of sucrose. Based on our preliminary results, the estimated refractive index of polystyrene microspheres deviates from the literature values by 0.2% and the estimated diameter by 20 nm from the nominal value provided by the manufacturer.

Paper Details

Date Published: 9 March 2020
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Proc. SPIE 11231, Design and Quality for Biomedical Technologies XIII, 112310J (9 March 2020); doi: 10.1117/12.2546756
Show Author Affiliations
Peter Naglič, Univ. of Ljubljana (Slovenia)
Yevhen Zelinskyi, Univ. of Ljubljana (Slovenia)
Boštjan Likar, Univ. of Ljubljana (Slovenia)
Miran Bürmen, Univ. of Ljubljana (Slovenia)


Published in SPIE Proceedings Vol. 11231:
Design and Quality for Biomedical Technologies XIII
Jeeseong Hwang; Gracie Vargas, Editor(s)

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