Holographic Diffraction Gratings

Holographic Grating

Spectrum Scientific's holographic gratings are produced using interference lithography. This process results in a smooth groove surface and eliminates the periodic errors found in ruled gratings. Because of this, holographic gratings are commonly used in applications where stray light is a concern.  Holographic gratings can have two groove profiles, sinusoidal and blazed.

Sinusoidal groove profiles are the most common groove shape for holographic gratings. The grooves are symmetrical and therefore have no blaze direction. A sinusoidal grating offers a wider spectral coverage compared to a blazed grating but has lower efficiency.

Spectrum Scientific is one of the few companies in the world to offer a blazed holographic diffraction grating. A blazed holographic grating has had the sinusoidal profile transformed into a 'saw tooth' profile. This saw tooth profile increases the efficiency of the diffraction grating over the wavelength region of interest without increasing the stray light. Currently this technique is limited to a blaze region of 200-300mm.

To read more about sinusoidal verses blazed profiles please visit blazed vs sinusoidal.

Spectrum Scientific offers a range of standard gratings. If we do not have a grating that meets your requirement, please contact our sales department as new gratings are manufactured on a regular basis. 

Click for Details Product Description Part Number Energy Curve Price Lead Time Qty
123 Grooves, 260nm Holographic Grating, 12.5x12.5x6mm

123-260-012

$128.00
2-4 Wks
123 Grooves, 260nm Holographic Grating, 25.0x25.0x6mm

123-260-025

$185.00
2-4 Wks
240 Grooves, 240nm Holographic Grating, 12.5x12.5x6mm

240-240-012

$125.00
2-4 Wks
240 Grooves, 240nm Holographic Grating, 25.0x25.0x6mm

240-240-025

$185.00
2-4 Wks
300 Grooves, 250nm Holographic Grating, 12.5x12.5x6mm

300-250-012

$125.00
2-4 Wks
300 Grooves, 250nm Holographic Grating, 25.0x25.0x6mm

300-250-025

$185.00
2-4 Wks
600 Grooves, 240nm Holographic Grating, 12.5x12.5x6mm

600-240-012

$125.00
2-4 Wks
600 Grooves, 240nm Holographic Grating, 25.0x25.0x6mm

600-240-025

$185.00
2-4 Wks
700 Grooves, 1100nm Holographic Grating, 12.5x12.5x6mm (S-Pol)

700-1100-012

$85.00
2-4 Wks
700 Grooves, 1100nm Holographic Grating, 25.0x25.0x6mm (S-Pol)

700-1100-025

$125.00
2-4 Wks
1200 Grooves, 240nm Holographic Grating, 12.5x12.5x6mm

1200-240-012

$125.00
2-4 Wks
1200 Grooves, 240nm Holographic Grating, 25.0x25.0x6mm

1200-240-025

$185.00
2-4 Wks
1200 Grooves, 700nm Holographic Grating, 12.5x12.5x6mm

1200-700-012

$85.00
2-4 Wks
1200 Grooves, 700nm Holographic Grating, 25.0x25.0x6mm

1200-700-025

$125.00
2-4 Wks
1300 Grooves, 800nm Holographic Grating, 12.5x12.5x6mm

1300-800-012

$85.00
2-4 Wks
1300 Grooves, 800nm Holographic Grating, 25.0x25.0x6mm

1300-800-025

$125.00
2-4 Wks
1440 Grooves, 250nm Holographic Grating, 12.5x12.5x6mm

1440-250-012

$125.00
2-4 Wks
1440 Grooves, 250nm Holographic Grating, 25.0x25.0x6mm

1440-250-025

$185.00
2-4 Wks
1740 Grooves, 1053nm Holographic Grating, 12.5x12.5x6mm

1740-1053-012

$85.00
2-4 Wks
1740 Grooves, 1053nm Holographic Grating, 25.0x25.0x6mm

1740-1053-025

$125.00
2-4 Wks
1800 Grooves, 230nm Holographic Grating, 12.5x12.5x6mm

1800-230-012

$125.00
2-4 Wks
1800 Grooves, 230nm Holographic Grating, 25.0x25.0x6mm

1800-230-025

$185.00
2-4 Wks
2322 Grooves, 300nm Holographic Grating, 12.5x12.5x6mm

2322-300-012

$125.00
2-4 Wks
2322 Grooves, 300nm Holographic Grating, 25.0x25.0x6mm

2322-300-025

$185.00
2-4 Wks
- *For quantities over 10 pieces please contact our sales team for discounted pricing
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