Optimising the length of doped polymer light mixers

Publisher:
Australian Institute of Physics
Publication Type:
Conference Proceeding
Citation:
Proceedings of the 16th National Congress of the Australian Institute of Physics, 2005, pp. 84 - 87
Issue Date:
2005-01
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Transparent Refractive Index Matched Micro-particles (TRIMM) in polymer rods are highly efficient light mixers. This paper addressess the problem of estimating the optimum length fr the mixing rods, for a given TRIMM-to-matrix refractive index ratio and concentration. Light mixing can be this maximised and loss minimised, without computer ray tracing simulations. The probability density function and mean angle for a single TRIMM sphere ray deviation are derived and used in modelling an expression for a critical mixer length for rays of normal incidence. Similar models could be very useful design tools with further development.
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