Fused Silica-JGS1
UV grade Fused Silica: (JGS1) is synthetic amorphous silicon dioxide of extremely high purity. This non-crystalline,
colorless silica glass combines a very low thermal expansion coefficient with good optical qualities, and excellent
transmittance in thf orientation and temperature instability inherent in the crystalline form. Fused silica is used for both
transmissive at ultraviolet. Transmission and homogeneity exceed those of crystalline quartz without the problems on
reflective optics, especially where high laser damage threshold is required. JGS1 is transparent in the ultraviolet and visible regions, and has no absorption bands in the 170-250 nm wavelength
intervals. It has an intensive OH absorption band in the interval of wavelength 2600-2800 nm.  
JGS1 is used for optics operating in the deep UV and the visible wavelength range (Laser Lenses, Windows, Prisms,
Mirrors, etc.). It is practically free of bubbles and inclusions.

Ms. Lin

Mr. Wen