Surplus Substrate Material
Surplus Substrate Material
Looking for optical substrate materials at a lower cost? Our surplus substrate materials offer a budget-friendly solution for research, prototyping, and low-volume production—without compromising on quality.
These substrates maintain our high standards for flatness, parallelism, and surface quality, making them suitable for a wide range of optical applications.
Available while supplies last—each item is sold on a first-come, first-served basis. Once a material is gone, it won’t be restocked.
Need help selecting a substrate or want more information? Contact our team—we’re here to help with specs, compatibility, and application guidance.
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- Parallelism: Wedge:<5 arcmin
- Size: 95 +0.0 / -0.25
- Thickness: 9 ±0.2
- Scratch-Dig: 80/50
- Clear Aperture: 90mm CA
- Flatness: <1 wave at 632nm
- Substrate Material: Calcium Fluoride
- Parallelism: 0.265 ± 0.005 degrees
- Size: 70.0 x 70.0 +0.0 / -0.25
- Thickness: 7.0 ±0.1
- Scratch-Dig: 40/20
- Clear Aperture: 65mm
- Flatness: 0.25 per inch or better
- Substrate Material: Fused Silica
- Parallelism: 0.532 ± 0.005 degrees
- Size: 70.0 x 70.0 +0.0 / -0.25
- Thickness: 7.0 ±0.1
- Scratch-Dig: 40/20
- Clear Aperture: 65mm
- Flatness: 0.25 per inch or better
- Substrate Material: Fused Silica
- Parallelism: 3 arc minutes or better
- Size: 6.00 x 4.00 +0.00 / -0.10
- Thickness: 0.340 ±0.05
- Scratch-Dig: 60/40
- Clear Aperture: 5.70” x 3.8” min.
- Flatness: < 1.5 power, < 0.5 irreg. over CA @ 632.8nm
- Substrate Material: Germanium
- Parallelism: Wedge: 30 ± 5 arc min
- Size: 19.0 Ø +0.0 / -0.2
- Thickness: 3.0 ±0.2
- Scratch-Dig: 60/40
- Clear Aperture: 17mm Ø min
- Flatness: 0.5 @ 633 nm
- Substrate Material: Germanium
- Parallelism: 30 arc seconds or better
- Size: 0.500 +0.000 / -0.004
- Thickness: 0.200 ±0.002
- Scratch-Dig: 60/40
- Clear Aperture: 0.457 in. min.
- Flatness: < 1 wave
- Substrate Material: Sapphire
- Parallelism: 2 arc minutes or better
- Size: 1.080 +0 / -0.004
- Thickness: 0.080 ±0.005
- Scratch-Dig: 40/20
- Clear Aperture: .065 from edge
- Flatness: < 3.0 pwr, < 0.5 irreg. over CA
- Substrate Material: Silicon
- Parallelism: 10 arc minutes or better
- Size: 50 X 50 +0.0 / -0.1
- Thickness: 2.0 ±0.1
- Scratch-Dig: 60/40
- Clear Aperture: >90%
- Flatness: < 2 per inch or better
- Substrate Material: Silicon
- Parallelism: 30 arc seconds or better
- Size: 63.5 ±0.1
- Thickness: 6.35 ±0.1
- Scratch-Dig: 60/40
- Clear Aperture: 58mm min
- Flatness: 1/2 RMS @ 633nm
- Substrate Material: Silicon
- Parallelism: 30 arc seconds or better
- Size: 64.0 ±0.05
- Thickness: 3.00 ±0.05
- Scratch-Dig: 60/40
- Clear Aperture: 53mm min
- Flatness: 0.25 Fringes RMS
- Substrate Material: Silicon
- Parallelism: 0.5 arc minutes or better
- Size: 0.500 +0.0 / -0.005
- Thickness: 0.085 +0.0 / -0.12
- Scratch-Dig: 40/20
- Clear Aperture: 0.400 inch
- Flatness: TWF: 1 pwr, 0.5 irreg / RWF: 0.25 irreg
- Substrate Material: Zinc Selenide
- Parallelism: 0.5 arc minutes or better
- Size: 0.500 +0.0 / -0.005
- Thickness: 0.085 +0.0 / -0.12
- Scratch-Dig: 60/40
- Clear Aperture: 0.400 inch
- Flatness: TWF: 1 pwr, 0.5 irreg
- Substrate Material: Zinc Selenide
- Parallelism: <3 arc minutes
- Size: 0.500 +0.0 / -0.005
- Thickness: 0.125 ±0.002
- Scratch-Dig: 60/40
- Clear Aperture: 0.400
- Flatness: Commercial
- Substrate Material: Zinc Selenide
- Parallelism: 0.5 arc minutes or better
- Size: 0.500 +0.0 / -0.005
- Thickness: 0.125 ±0.002
- Scratch-Dig: 40/20
- Clear Aperture: 0.400
- Flatness: 0.25 pwr, 0.25 irreg. @ 632.8nm
- Substrate Material: Zinc Selenide
- Parallelism: 1.0 arc minutes or better
- Size: 0.500 +0.0 / -0.012
- Thickness: 0.381 +0.0 / -0.012
- Scratch-Dig: 60/40
- Clear Aperture: 0.400 inch
- Flatness: TWF: 0.5 pwr, 0.4 irreg @ 632.8nm
- Substrate Material: Zinc Selenide
- Parallelism: 0.5 arc minutes or better
- Size: 0.500 +0.0 / -0.015
- Thickness: 0.381 +0.0 / -0.012
- Scratch-Dig: 40/20
- Clear Aperture: 0.400 inch
- Flatness: TWF: 0.6 pwr, 0.25 irreg @ 632.8nm
- Substrate Material: Zinc Selenide
PART NO.
DESCRIPTION
1 - 5 pcs.
6 - 10 pcs.
> 10 pcs.
Stock Status
$1,760.00
$1,760.00
$1,760.00
In Stock: 1
$855.00
$855.00
$855.00
In Stock: 2
$855.00
$855.00
$855.00
In Stock: 2
$11,520.00
$11,520.00
$11,520.00
In Stock: 2
$392.00
$392.00
$392.00
In Stock: 18
$36.00
$36.00
$36.00
In Stock: 200
$110.00
$110.00
$110.00
In Stock: 60
$185.00
$185.00
$185.00
In Stock: 45
$265.00
$265.00
$265.00
In Stock: 24
$335.00
$335.00
$335.00
In Stock: 6
$253.00
$253.00
$253.00
In Stock: 30
$123.00
$123.00
$123.00
In Stock: 62
$110.00
$110.00
$110.00
In Stock: 50
$272.00
$272.00
$272.00
In Stock: 28
$140.00
$140.00
$140.00
In Stock: 43
$282.00
$282.00
$282.00
In Stock: 47