JGS3 Fused Silica Wafers Full Spectrum

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Where Can I Buy JGS3 Fused Silica Substrates?

JGS3 in stock items can be purchased online.

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JGS3 Fused Silica Transmission Curve

jgs3 fused silica transmission curve chart

What Does JGS3 Full Spectrum Fused Silica Mean?

When you need a substrate that can handle very high temperatures and work as an insulator in semiconductors, then JGS2 Grade Fused Silica Wafers is the right choice.

Parameter Value JGS3
Max Size <200mm
Tramission Range (medium transmission ratio) 0.185~3.50um (Tavg>85%)
OH-Content 5ppm
Fluorescence (ex 254nm) Strong v-b
Impurity Content 40-50 ppm
Birefringent constant 4-10 nm/cm
Melting Method Electrical Method

What other Fused Silica Wafer Grades are Available?

Other fused silica wafer grades and their applications include:

  • JGS1 - Lasers, substrates: window, lens, prism, mirror
  • JGS2- Semiconductor and temp windows

JGS3 Fused Silica for Optical Coatings

Fused Silica Wafers is a type of molten UV silica wafer originally developed to measure the quality of optical coatings. The standard thickness of a molten silicon transfer is 500, 700 or 1000 mm, but JGS2 wafers are made with smaller diameters, which are bubble-free and can be very thin. [Sources: 1]

In the visible range, the transmission of quartz glass is also high, but the ultraviolet range is larger. In the infrared range, the spectral transmission is large for ordinary glass, but small for quartz. The reflection of quartz glass is generally 8%, the reflection of silicon wafers is only 2%. [Sources: 0]

An optic with a thickness of 1 cm has a transmission of about 50% at wavelengths below 170 nm, while it drops to only a few percent at 160 nm and to about 10% at 180 nm. [Sources: 3]

Absorption in the visible band is caused by the presence of transition metal ions, and absorption at 2730 nm is an absorption peak of hydroxyl that can be used to calculate the hydroxyl value. In the infrared range, the absorption of the metal ion OH (1,2,3,4,5,6,8,11,13,14,15,16,18,19,21,22,23,24,25,26,27,28,29,30,32,34,35,37,38,39,40,42,43,44,45,
46,47,48,49,50,52,53,54,55,56, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 81, 82, 83, 84, 85, 86, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 102, 103, 104, 105, 106, 107, 108, 109 The UV absorption already starts at approx. Contains a large amount of hydryl (2000 ppm), has an excellent UV transmission performance and an excellent UV transmission performance. Absorption for visible bands causes the absence of heavy metals, but also in the infrared range, due to a high concentration of hydrocarbons. [Sources: 0, 1]

Spectral transmission is much better than with any other type of glass, and the bubble - strip uniformity and birefringence are comparable to ordinary optical glasses. Chemical stability is good, but the transmission power is significantly better than other types of glasses, especially in the short-wave UV range; especially for short-wave and UV regions. [Sources: 0]

JGS1 is transparent in the ultraviolet and visible ranges and has an absorption range of 170 - 250 nm wavelength intervals. It has absorption bands in 185 to 250% of the spectral range, but a very low absorption range of less than 5 nm with a maximum of 1.5 nm. JGS 1 has no cushioning tape on 170 to 250 Nm wavelength interval, except for the visible range. [Sources: 1, 2]

It is transparent in the ultraviolet and visible ranges and has an absorption range in wavelength intervals of 170 - 250 nm. In the visible range, it has absorption bands in 185 to 250% of the spectral range, but a very low absorption range of less than 5 nm with a maximum of 1.5 nm. It has an OH absorption band in the 2700 nm water band and there is a strip particle structure, so the application should not be sensitive to inclusion. The elements that are built into large parts will most likely contain bubbles, and this is the main reason for the high concentration of bubbles in JGS 3. [Sources: 0, 2]

We can send you a drawing of the final product and we will make you an offer and you can also send us your drawings of your product in the form of a PDF file. [Sources: 3]

The JGS2 grade offers excellent performance in all cases where this is the primary goal, and the shape provides a high degree of shelf life and high quality of the end product. We meet customer demand for processing while saving costs and in some cases even high demand. [Sources: 2, 3]

The JGS3 combines outstanding physical properties with outstanding performance in the shortwave and ultraviolet ranges of the electromagnetic spectrum. By adding a small amount of TiO2, the UV light is filtered out at 220 nm, which is called ozone-free quartz glass. It has excellent ultraviolet transmission, with a short-wave ultraviolet range that is much better than other glasses. Shortwave up to 340 Nm can be filtered out by adding quartz glass and small amounts of titanium dioxide, a high-performance, low-cost, non-oxidizing material that filters ultraviolet to 220 nm and is called "ozone-free" quartz glass. [Sources: 0, 2]

A thin article made of quartz glass, which is quenched by immersion in cold water for 1000 dollars without breaking, is available. A wide range of quartz used - molten quartz - combines with the JGS3, with the use of quartz carrying the additional risk of thermally induced fractures, but without the high cost and additional risks of using the quartz. [Sources: 3]

Quartz glass has a higher melting point than highly chilled cristobalite and can undergo large and rapid temperature changes without cracking. Quartz, however, can undergo a larger and faster temperature change before cracking, accompanied by a large reduction in density, which leads to cracking and splintering. [Sources: 1, 3]

 

 

Sources:

[0]: https://www.micquartz.com/optical-quartz-glass-jgs1-jgs2-jgs3/

[1]: https://nanografi.com/blog/fused-silica-wafers-types-and-their-applications/

[2]: http://www.rising-eo.com/newx1.php?classid=347&infoid=910

[3]: http://www.optoelect.com/2018/Quartz-Glass_0411/11.html