The chemical contents in the sand quartz has reached national standards of silicon raw material for plate glass production after combined treating by magnetic separation plus diluted acid dipping.
A method for designing compound achromatic wave plate made of mica and quartz is presented.
本文给出了一种利用云母、石英材料设计复合式消色差波片的方法。
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Alternatively, calibration may be checked using a Polarization Reference Standard, which consists of a plate of quartz mounted in a holder perpendicular to the light path.