The optical properties of quartz glass are unique, which can pass through the far ultraviolet spectrum, which is better than all ultraviolet materials, and can pass through the visible light and near infrared spectrum. Users can choose the desired variety from 185-3500m μ-band according to their needs. Because the quartz glass is resistant to high temperature, the coefficient of thermal expansion is small, the chemical thermal stability is good, the bubble, the streak, the uniformity, the birefringence can be comparable to the general optical glass, so it is an essential optical material for working in a variety of harsh occasions with high stability optical system.
The structure, impurity content, OH genetic factor and NO, CO content of quartz glass are the main factors affecting the spectral transmittance. The absorption peak at 0.24 μm is caused by poor oxygen atom binding. The quartz glass containing OH group has an obvious absorption peak at 2.7 μm due to molecular vibration. The low UV transmittance is mainly caused by atomic absorption spectra caused by metal impurities