CPC G01N 33/386 (2013.01) [C03C 21/002 (2013.01); G01L 1/00 (2013.01)] | 16 Claims |
1. A method of improving a functionality of a prism-coupling system having a controller to perform quality control of a chemically strengthened lithium-containing glass sample, the method comprising:
a) measuring a mode spectrum of the chemically strengthened lithium-containing glass sample using the prism-coupling system;
b) using the controller, determining a non-integer part of a number of modes of the mode spectrum; and
c) comparing the non-integer part of the number of modes to a non-integer part of the number of modes specification to determine whether the chemically strengthened lithium-containing glass sample satisfies a quality control specification, wherein the non-integer part of the number of modes specification is from greater than or equal to 0.1 to less than or equal to 0.6.
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