Topics in Particle and Dispersion Science

Refractive index of polystyrene: Spectra

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Fig. 1. Complex refractive index of polystyrene, m = m' - m"i. The real part, m', spectrum (top panel) is based on the Cauchy equation fit, Eq. 1, to the data of Matheson LA and Saunderson 1952 as quoted by Chen K et al 2003 (green curve) for bulk polystyrene. A Cauchy equation fit (red curve) and the data (symbols) of Ma X et al 2003 were obtained for polystyrene in the form of ~1 µm diameter microspheres. Note that the real part of the refractive index of bulk polystyrene is approximately identical to that of the particulate polystyrene (green curve) in a wavelength range of 860 to 1580 nm. The imaginary part, m" (bottom panel) is based on an approximation by Chen K et al 2003 (green curve, Eq. 2) to the absorption spectrum data of Li T et al 1991 for polystyrene dissolved in chloroform and on the data of Ma X et al 2003 (symbols) obtained for the particulate polystyrene. Vertical lines are error bars (+/- 1 SD). Data marked by symbols were kindly provided by X.-H. Hu. See also tab-delimited numerical data, reproduced with permission from original data listed in "Data Tables" at http://bmlaser.physics.ecu.edu/literature/lit.htm.

CITATION: Jonasz M. 2006. Refractive index of polystyrene (www.tpdsci.com/Tpc/RIPolystyrene.php). In: Top. Part. Disp. Sci. (www.tpdsci.com).

HISTORY: Published: 23-Feb-2006 Modified: 22-Oct-2010 Peer-reviewed: 29-Aug-2006

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