Optically, Crystalline Quartz is used extensively as a wave retardation medium. The birefringent properties of Quartz are of use in quarter-wave plates and in polarisers. Quartz should not be processed or used at temperatures greater than 490 ¥ìm.
Specifications
Transmission Range
0.18 to 3.5 ¥ìm (also >40 ¥ìm)
Reflection Loss
8.8% at 0.6 ¥ìm (2 surfaces)
Absorption Coefficient
n/a
Refractive Index
No 1.54421; Ne 1.55333 at 0.6 ¥ìm
Melting Point
1710 ¡É
Hardness
Knoop 741 with 500g indenter
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