Ruled Diffraction Gratings, Standard & CW Type

Ruled Diffraction Gratings

Optometrics

Ruled Diffraction Gratings

High Quality Ruled Gratings

ruled-diffraction-grating-efficiency-curve — Sample Efficiency Curve – 120/12µ Ruled Diffraction Grating

These replicated diffraction gratings are produced from high-quality ruled master gratings and are intended for use in spectrometers and monochromators where cost and high efficiency are of primary concern. Ruled diffraction gratings have a higher peak efficiency than holographic diffraction gratings and a sharper spectral response around their blaze wavelength, due to their “sawtooth” groove profile.

Applications like fluorescence excitation, analytical chemistry, life sciences, telecom, physics, education and space sciences – centered around a narrow wavelength range – benefit from a ruled diffraction grating blazed at that wavelength.

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Damage Thresholds

Available with standard or CW-type construction for higher damage threshold performance ruled diffraction gratings can also be produced on substrates with a lower coefficient of thermal expansion (CTE) 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

Ruled Diffraction Grating Specifications | G120R12.0QEAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0QGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0CEAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	12.7 mm Sq.	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0GEAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0GGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	25 mm Sq.	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0TGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	25 X 50 mm	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0JGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	30 mm Sq.	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G120R12.0MGAS

Optical Coating	Aluminum	Grooves Per mm	120
Blaze	12.0μ	Groove Angle	46.05°
Dispersion @ Blaze (nm/mr)	5.78	Substrate	Float Glass
Size (mm)	50 mm sq.	Size Tolerance	±0.5 mm
Thickness	9.5 mm	Thickness Tolerance	±0.5 mm
Scratch/Dig	60/40	Clear Aperture	90%
Edge Angle	90° ±0.50°	Perpendicularity	90° ±0.50°
Operating Temperature Range	-50° C to +125° C	Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse
Damage Threshold: CW laser	40 watts/cm²

Ruled Diffraction Grating Specifications | G1200R1.0QEAC

Optical Coating	Aluminum	Grooves Per mm	1200
Blaze	1.0μ	Groove Angle	36.87°
Dispersion @ Blaze (nm/mr)	0.67	Substrate	Pyrex
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +200° C
Damage Threshold: Pulsed	3.5 J/cm², 200 nano sec. pulse	Damage Threshold: CW laser	250 watts/cm²

Ruled Diffraction Grating Specifications | G1200R1.0QEAS

Optical Coating	Aluminum	Grooves Per mm	1200
Blaze	1.0μ	Groove Angle	36.87°
Dispersion @ Blaze (nm/mr)	0.67	Substrate	Float Glass
Size (mm)	12.5 X 25 mm	Size Tolerance	±0.5 mm
Thickness	6 mm	Thickness Tolerance	±0.5 mm
Grooves Parallel	Short	Scratch/Dig	60/40
Clear Aperture	90%	Edge Angle	90° ±0.50°
Perpendicularity	90° ±0.50°	Operating Temperature Range	-50° C to +125° C
Damage Threshold: Pulsed	350 mJ/cm², 200 nano sec. pulse	Damage Threshold: CW laser	40 watts/cm²

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Ruled Diffraction Gratings

Optometrics