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http://dx.doi.org/10.3807/KJOP.2017.28.5.221

Measurement of the Refractive Index of a Mixed Polymer by a Prism Spectrometer and its Application  

Kim, Ji-Young (Department of Physics Education, Kyungpook National University)
Ju, Young-Gu (Department of Physics Education, Kyungpook National University)
Publication Information
Korean Journal of Optics and Photonics / v.28, no.5, 2017 , pp. 221-228 More about this Journal
Abstract
We measured the refractive index of a mixed polymer (NOA61, NOA84) in the liquid and solid states. First we made a hollow prism and filled it with UV (ultraviolet) epoxy. Measurement of the apex angle and the minimum-deviation angle gave the refractive index of the liquid polymer. To measure the refractive index of the solid polymer, an additional structure was included in the hollow prism, and the UV epoxy filling in the hollow prism was hardened. In both cases of liquid and solid polymers, the refractive index of the mixed polymer turned out to be proportional to the mix ratio. These results provide a method to vary the focal length of a double stacked cylindrical microlens array using UV epoxy.
Keywords
Refractive index; Prism; Polymer; Spectrometer; Microlens;
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Times Cited By KSCI : 1  (Citation Analysis)
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