Z-Cut Quartz (SiO2) is used in the manufacture of windows, waveplates and polarizers. The material is birefringent which means it has two refractive indices and therefore light splits into extraordinary and ordinary rays. In z-cut quartz material the optical axis is machined and polished perpendicular to the optical axis which causes ordinary and extraordinary rays to follow the same path through the crystal maintaining the polarization of the beam.
Quartz transmits can be used in UV and Visible applications as it transmits at over 90% at 0.18-3.5µm range. Additionally quartz crystal transmits in excess of 50µm in the Terahertz region. The electro-magnetic radiation can be used in airport scanners to scan underneath peoples garments preventing weapons eluding security. In most cases Z-Cur Quartz windows are available as surplus as both right handed and left handed quartz.
||60-40 scratch/ dig
If you require large Z-Cut Quartz Windows up 12”diameter.
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