Attenuated Total Reflectance

Overview

Attenuated Total Reflection or ATR is a technique used together with Teng Mann to measure the R33 of electro-optic materials.

Significance

The electro-optic coefficient for a poled polymer film can be calculated as follows.

<math>r_33 = \frac {2} {n^3_{TM}} \frac {\eta n_{TM}} {\eta E^'}\,\!</math>