Holographic Diffraction Gratings

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Optometrics

High-Quality Holographic Diffraction Gratings

These replicated holographic diffraction gratings are produced on soda lime glass substrates from high quality holographic master gratings and are intended for use in spectrometers and monochromators where cost and low stray light are of primary concern. They exhibit a flatter response due to their sinusoidal groove profile.

Damage Thresholds

Available with either standard or CW-type construction for higher damage threshold performance, holographic diffraction gratings can also be produced on substrates with a lower coefficient of thermal expansion for better stability. No damage threshold minimums apply to diffraction gratings with an overcoat.

Standard

Pulsed 350 milli-joules/ cm² @ 200 n sec.
CW 40 watts/cm²

CW-Type

Pulsed 3.5 joules/ cm² @ 200 n sec.
CW 250 watts/cm²

For continuous high power applications.

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Product SKUs

Product Listing

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Pyrex	Size	25 mm Sq.
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Coating	Aluminum
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpindicularity	90° ±0.50°
Operating Temperature Range	-50° C to +200° C	Damage Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Float Glass	Size	25 mm Sq.
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Coating	Aluminum
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpindicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Pyrex	Size	25 X 50 mm
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Grooves Parallel	Short
Coating	Aluminum	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpindicularity	90° ±0.50°	Operating Temperature Range	-50° C to +200° C
Damage Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Float Glass	Size	25 X 50 mm
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Grooves Parallel	Short
Coating	Aluminum	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpindicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Pyrex	Size	30 mm Sq.
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Coating	Aluminum
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpindicularity	90° ±0.50°
Operating Temperature Range	-50° C to +200° C	Damage Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Float Glass	Size	30 mm Sq.
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Coating	Aluminum
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpindicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Pyrex	Size	50 mm sq.
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Coating	Aluminum
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpindicularity	90° ±0.50°
Operating Temperature Range	-50° C to +200° C	Damage Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1200	Blaze	VIS
Groove Angle	Holographic VIS	Dispersion @ 500 nm (nm/mr)	0.79
Substrate	Float Glass	Size	50 mm sq.
Size Tolerance	±0.5 mm	Thickness	9.5 mm
Thickness Tolerance	±0.5 mm	Coating	Aluminum
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpindicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW Laser	40 watts/cm²

Grooves Per mm	1800	Blaze	UV
Groove Angle	Holographic UV	Dispersion @ 250 nm (nm/mr)	0.54
Substrate	Pyrex	Size	12.5 X 25 mm
Size Tolerance	±0.5 mm	Thickness	6 mm
Thickness Tolerance	±0.5 mm	Grooves Parallel	Short
Coating	Aluminum	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpindicularity	90° ±0.50°	Operating Temperature Range	-50° C to +200° C
Damage Threshold: Pulsed laser	3.5 J/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	250 watts/cm²

Grooves Per mm	1800	Blaze	UV
Groove Angle	Holographic UV	Dispersion @ 250 nm (nm/mr)	0.54
Substrate	Float Glass	Size	12.5 X 25 mm
Size Tolerance	±0.5 mm	Thickness	6 mm
Thickness Tolerance	±0.5 mm	Grooves Parallel	Short
Coating	Aluminum	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpindicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed laser	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW Laser	40 watts/cm²

Optometrics

High-Quality Holographic Diffraction Gratings

Product SKUs

Product Listing

1200 Groove, VIS Holographic, 25 mm Sq., 9.5 mm Thick, CW Type

1200 Groove, VIS Holographic, 25 mm Sq., 9.5 mm Thick, Standard

1200 Groove, VIS Holographic, 25 X 50 mm, 9.5 mm Thick, CW Type

1200 Groove, VIS Holographic, 25 X 50 mm, 9.5 mm Thick, Standard

1200 Groove, VIS Holographic, 30 mm Sq., 9.5 mm Thick, CW Type

1200 Groove, VIS Holographic, 30 mm Sq., 9.5 mm Thick, Standard

1200 Groove, VIS Holographic, 50 mm Sq., 9.5 mm Thick, CW Type

1200 Groove, VIS Holographic, 50 mm Sq., 9.5 mm Thick, Standard

1800 Groove, UV Holographic, 12.5 X 25 mm, 6 mm Thick, CW Type

1800 Groove, UV Holographic, 12.5 X 25 mm, 6 mm Thick, Standard