Fused Silica Wafers All Sizes and Grades

university wafer substrates

What is Fused Silica?

Fused silica is the glassy form of quartz and is thus isotropic. It is tough and hard and has a very low expansion. Normal varieties contain water which gives strong absortion in the IR. Water-free varieties are available. There are different types Fused Silica used for different application. We mainly have three types, including JGS1, JGS2, JGS3.

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Fused Silica Wafer Inventory

Below are just a small expample of the Fused Silica wafers that we have in stock. We can also custom make any spec!

fused silica in stock wafers

 

Optical Grade Fused Quartz

See below for the application and their equivalent to other Fused Silica supplier and our prices our usually much lower.

 fused silica JGS2 optical transmission

JGS1 Fused Silica Definition

Is transparent in the ultraviolet and visible regions. It has no
absorption hands in 170-250 nm wavelength intervals and has 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.

JGS1 Fused Silica is similiar to the following Manufacturers
Heraeus - Suprasil 1 and 2 Saint-Gobain - Spectrosil A and B Coming's 7940 Dynasil's 1100 and 4100 

JGS2 Fused Silica Definition

The benefits include good UV and visible transmission similiar to JGS1. Can
be made in small diameters/dimensions that can be very thin and is free
of bubbles. Cons include possible bubbles in larger dimensions/diameters.

JGS2 Fused Silica is similiar to the following Manufacturers
Heraeus' Homosil 1,2 & 3
Dynasil 1000 & 4000 & 5000 & 6000

Applications for JGS2 include:

  • condenser optics
  • high temperature and pressure devices
  • optical flats
  • microscope slides
  • sight glasses

fused silica jgs3 optical transmission data

JGS3 Fused Silica Definition

JGS3 is transparent in the ultraviolet, visible and infrared spectral
regions. It's absorption bands are in the 185-250 nm spectral region,
but has no absorption bands in the visible physical properies with
outstanding optical characteristics in the deep UV and the IR
wavelength range. It is those requiring very wide wavelength range from
DUV to MIR. It is quite a bit more expensive than Silicon and slightly
less expensive than Calcium Fluoride or ZnS Multi-spectral grade. 

JGS3: is similiar to the following manufacturers
Heraeus Suprasil 300.

What is the Refractive Index of Fused Silica Wafers?

Refractive Index (nd) at 588nm

1.4586
Wavelength (um) Refractive Index (n) Wavelength (um) Refractive Index (n)
0.200 1.55051 1.000 1.45042
0.220 1.52845 1.064 1.44962
0.250 1.50745 1.100 1.44920
0.300 1.48779 1.200 1.44805
0.320 1.48274 1.300 1.44692
0.360 1.47529 1.500 1.44462
0.400 1.47012 1.600 1.44342
0.450 1.46557 1.700 1.44217
0.488 1.46302 1.800 1.44087
0.500 1.46233 1.900 1.43951
0.550 1.46008 2.000 1.43809
0.588 1.45860 2.200 1.43501
0.600 1.45804 2.400 1.43163
0.633 1.45702 2.600 1.42789
0.650 1.45653 2.800 1.42377
0.700 1.45529 3.000 1.41925
0.750 1.45424 3.200 1.41427
0.800 1.45332 3.370 1.40990