Session M7: Undergraduate Session
8:00 AM–10:00 AM, Thursday, June 7, 2012
Room: Terrace
Chair: Charles Conover, Colby College
Abstract ID: BAPS.2012.DAMOP.M7.3
Abstract: M7.00003 : Empirical Model for Total Internal Reflection (TIR) from Highly Turbid Media
8:45 AM–9:00 AM
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Abstract 
Authors:
Kashika Goyal
(Department of Physics, Miami University)
Miao Dong
(Department of Physics, Miami University)
Bradley Worth
(Department of Physics, Miami University)
Lalit Bali
(Department of Physics, Miami University)
Samir Bali
(Department of Physics, Miami University)
Recently we introduced a new empirical model for total internal reflection (TIR) from a highly turbid medium [W. Calhoun, et al, \emph{Opt. Lett.} {\bf 35}, 1224-1226 (2010); \emph{ibid} {\bf 36}, 3172 (2011)]. The key feature of our model is that it incorporates into Fresnel theory the effect of angle-dependent penetration of the incident light into the medium. Here we show that the TIR data is, for the first time, well described by a model which has no extraneous fitting parameters. As a further check we use our model to extract the particle size for a highly turbid aqueous solution of monodisperse polystyrene microspheres of known size. Next we apply our model to a first in-situ measurement of average particle size in a widely used intravenous human nutrient
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2012.DAMOP.M7.3