HOLOEYE offers a range of off-the-shelf standard glass Diffractive Optical Elements. These stock elements are made of Fused Silica glass by etching, or are replicated using Acrylate polymers on Soda Lime glass substrates. Both versions feature an anti-reflective (AR) coating on the plain side of the glass substrate.
Compared to DOEs made from polymer materials, the glass DOEs are more ruggedized. They are more scratch resistant, can withstand higher temperatures and higher laser powers, have lower thermal extension coefficients (CTE) and the fused silica DOEs can easily withstand exposure to UV radiation without degradation.
The Fused Silica DOEs have a size of 5 mm x 5.75 mm at 0.67mm thickness. The Arylate-on-Soda-Lime DOEs have a size of 5.2 mm x 4.7 mm at 1mm thickness. In sample quantities, both versions are available in a 12.7 mm diameter frame for use with standard laboratory mounts.
Please note: The images of the patterns in the tables below are schematic drawings. In a real setup, higher diffraction orders can be visible, and the undiffracted order can appear as a bright spot in the center.
Lines & Dot Lines
Pattern Size @ 100 mm Distance (@ Design Wavelength)
Pattern Angles (@ Design Wavelength)
Specs
DOE #
Description
Design Wavel.
a
b
c
d
α
β
γ
δ
Specs
DOE #
Description
Design Wavel.
DE 801
1 : 2 Beam Splitter
660 nm
Pattern Size @ 100 mm Distance (@ Design Wavelength)
45.1 mm
—
—
—
Pattern Angles (@ Design Wavelength)
25.4°
—
—
—
- Current Product Revision: A
- Description: 1 : 2 Beam Splitter
- Substrate Material: Fused Silica
- AR coating on rear side of the substrate: R < 0.5% at recommended wavelength range
- Substrate Size: 5 mm x 5.75 mm
- Design Wavelength: 660 nm
- Recommended Wavelength Range: 630-700 nm
- Typ. Diffraction Efficiency: 79% at design wavelength
- Minimum Recommended Beam Diameter: 0.1 mm
Specs
DOE #
Description
Design Wavel.
DE 802
1 : 7 Dot Line
640 nm
Pattern Size @ 100 mm Distance (@ Design Wavelength)
12.8 mm
—
—
2.1 mm
Pattern Angles (@ Design Wavelength)
7.3°
—
—
1.22°
- Current Product Revision: A
- Description: 1 : 7 Dot Line
- Substrate Material: Fused Silica
- AR coating on rear side of the substrate: R < 0.5% in the range 600-700 nm
- Substrate Size: 5 mm x 5.75 mm
- Design Wavelength: 640 nm
- Recommended Wavelength Range: 630-760 nm
- Typ. Diffraction Efficiency: 76% at design wavelength
- Minimum Recommended Beam Diameter: 0.1 mm
Specs
DOE #
Description
Design Wavel.
DE 803
1 : 25 Dot Line
640/650 nm
Pattern Size @ 100 mm Distance (@ Design Wavelength)
15.4 mm
—
—
0.64 mm
Pattern Angles (@ Design Wavelength)
8.8°
—
—
0.37°
- Current Product Revision: A
- Description: 1 : 25 Dot Line
- Substrate Material: Fused Silica
- AR coating on rear side of the substrate: R < 0.5% in the range 600-700 nm
- Substrate Size: 5 mm x 5.75 mm / 0.67 mm
- Design Wavelength: 640 nm (Batch A), 650 nm (Batch B)
- Recommended Wavelength Range: Range: 635-645 nm (Batch A) and 645-655nm (Batch B)
- Typ. Diffraction Efficiency: 79% at design wavelength
- Minimum Recommended Beam Diameter: 0.5 mm
Crosshair
Pattern Size @ 100 mm Distance (@ Design Wavelength)
Pattern Angles (@ Design Wavelength)
Specs
DOE #
Description
Design Wavel.
a
b
c
d
α
β
γ
δ
Specs
DOE #
Description
Design Wavel.
DE-R 440
Cross – 38 @ 635
635 nm
Pattern Size @ 100 mm Distance (@ Design Wavelength)
69.6 mm
—
—
—
Pattern Angles (@ Design Wavelength)
38.4°
—
—
—
- Current Product Revision: A
- Description: Cross – 38 @ 635
- Number of Spots on Line: 1191
- Substrate Material: Acrylate on soda lime glass with AR coating for 635nm on rear side of the substrate
- Substrate Size: 5.2 mm x 4.7 mm
- Thickness: 1.0 mm
- Design Wavelength: 635 nm
- Recommended Wavelength Range: 560-670 nm
- Typ. Diffraction Efficiency: 75% at design wavelength
- Minimum Recommended Beam Diameter: 1.5 mm
Dot Matrix
Pattern Size @ 100 mm Distance (@ Design Wavelength)
Pattern Angles (@ Design Wavelength)
Specs
DOE #
Description
Design Wavel.
a
b
c
d
α
β
γ
δ
Specs
DOE #
Description
Design Wavel.
DE 804
Matrix 5 x 5 Dots
650 nm
Pattern Size @ 100 mm Distance (@ Design Wavelength)
79.1 mm
55.9 mm
53.9 mm
13.1 mm
Pattern Angles (@ Design Wavelength)
43.1°
31.2°
30.1°
7.5°
- Current Product Revision: A
- Description: Matrix 5 x 5 Dots
- Number of Dots: 25 Dots
- Substrate Material: Fused Silica
- AR coating on rear side of the substrate: R < 0.5% in the range 600-700 nm
- Substrate Size: 5 mm x 5.75 mm
- Thickness: 0.67 mm
- Design Wavelength: 650 nm
- Recommended Wavelength Range: 630-700 nm
- Typ. Diffraction Efficiency: 75% at design wavelength
- Minimum Recommended Beam Diameter: 0.1 mm