Optical Quartz

Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon-oxygen tetrahedra. It is one of the most abundant minerals on Earth and has many different grades and applications.

Quartz grades are based on the purity, color, and size of the mineral. Here are some of the common grades of quartz:

1. High-grade quartz(JGS1): This is the purest form of quartz, with a purity level of 99.99%. It is often used in high-tech applications such as electronics and semiconductors.

2. Medium-grade quartz(JGS2): This grade of quartz has a purity level of around 99.5%. It is commonly used in applications such as glass production and ceramics.

JGS1 is a type of quartz glass that is commonly used in optical and semiconductor applications. It is a high-purity quartz glass with a very low level of impurities, which makes it an ideal material for applications that require optical transparency and high-temperature resistance.

JGS1 is a specific type of quartz glass that is produced by the Ohara Corporation in Japan. It has a very high level of purity, with a total impurity content of less than 10 ppm (parts per million). This purity level makes JGS1 ideal for use in optical applications such as lenses, prisms, and mirrors, as well as in semiconductor manufacturing equipment where contamination can be a significant issue.

JGS1 quartz glass also has excellent thermal properties, with a high melting point of around 1700 degrees Celsius, and a low coefficient of thermal expansion. This makes it ideal for use in high-temperature applications such as furnace tubes, wafer carriers, and other semiconductor processing equipment.

Overall, JGS1 quartz glass is a high-quality, high-purity material that is ideal for use in a wide range of optical and semiconductor applications. Its unique properties make it an essential material in many advanced technologies.

JGS2 is another type of quartz glass that is commonly used in optical and semiconductor applications. Like JGS1, it is a high-purity quartz glass with a low level of impurities. JGS2 is also produced by the Ohara Corporation in Japan and is part of their JGS series of quartz glasses.
Compared to JGS1, JGS2 has a slightly higher level of impurities, with a total impurity content of less than 20 ppm (parts per million). While this makes it slightly less pure than JGS1, JGS2 is still a high-quality material that is ideal for many optical and semiconductor applications.
JGS2 quartz glass has many of the same properties as JGS1, including excellent optical transparency, high-temperature resistance, and low thermal expansion. It is often used in applications such as lenses, prisms, and mirrors, as well as in semiconductor manufacturing equipment.