

Diffraction Gratings for Monochromators, 50–3600 g/mm, 68 × 68 mm
Diffraction GratingsDesign Tools
View all 49 calculators →Holographic and ruled 68 × 68 mm gratings that set the wavelength range and dispersion of a monochromator or spectrograph.
This range of 68 × 68 mm diffraction gratings covers groove densities from 50 to 3600 g/mm and working ranges from 180 nm to 22 µm. Eight holographic gratings serve the UV–NIR region, while 36 ruled gratings with blaze wavelengths from 240 nm to 12 µm extend coverage into the mid-infrared. Dispersion for each groove density is tabulated for Omni-λ200i, 300i, 500i and 750i instruments.
Key Features
- 44 grating models, all 68 × 68 mm
- Groove densities from 50 to 3600 g/mm
- Holographic gratings from 1200 to 3600 g/mm for 180–1200 nm
- Ruled gratings with blaze wavelengths from 240 nm to 12 µm
- Combined working range from 180 nm to 22 µm
- Working range, groove density and blaze wavelength listed for every model
Typical Applications
- Replacement or additional gratings for monochromators and spectrographs
- UV–visible spectroscopy
- Raman and fluorescence spectroscopy
- Near- and mid-infrared spectroscopy
Model Overview
| Model (Ruled) | Working Range | Grooves (g/mm) | Blaze Wavelength |
|---|---|---|---|
| 1-240-240-NP | 190–600 nm | 2400 | 240 nm |
| 1-240-300-NP | 250–600 nm | 2400 | 300 nm |
| 1-180-400-NP | 300–800 nm | 1800 | 400 nm |
| 1-180-500-NP | 350–800 nm | 1800 | 500 nm |
| 1-120-250-NP | 200–500 nm | 1200 | 250 nm |
| 1-120-300-NP | 200–600 nm | 1200 | 300 nm |
| 1-120-400-NP | 200–1000 nm | 1200 | 400 nm |
| 1-120-500-NP | 350–1100 nm | 1200 | 500 nm |
| 1-120-750-NP | 500–1200 nm | 1200 | 750 nm |
| 1-090-550-NP | 350–1600 nm | 900 | 550 nm |
| 1-083-1200-NP | 700–1700 nm | 830 | 1200 nm |
| 1-060-300-NP | 200–600 nm | 600 | 300 nm |
| 1-060-500-NP | 330–1000 nm | 600 | 500 nm |
| 1-060-750-NP | 500–1500 nm | 600 | 750 nm |
| 1-060-1000-NP | 650–2200 nm | 600 | 1.0 µm |
| 1-060-1200-NP | 800–2400 nm | 600 | 1.2 µm |
| 1-060-1600-NP | 1–2.4 µm | 600 | 1.6 µm |
| 1-030-300-NP | 200–600 nm | 300 | 300 nm |
| 1-030-500-NP | 300–1000 nm | 300 | 500 nm |
| 1-030-760-NP | 450–1500 nm | 300 | 760 nm |
| 1-030-1000-NP | 600–2000 nm | 300 | 1000 nm |
| 1-030-1200-NP | 800–2200 nm | 300 | 1200 nm |
| 1-030-2000-NP | 1.4–4 µm | 300 | 2.0 µm |
| 1-030-3000-NP | 2–4.8 µm | 300 | 3.0 µm |
| 1-015-300-NP | 200–600 nm | 150 | 300 nm |
| 1-015-500-NP | 330–1100 nm | 150 | 500 nm |
| 1-015-800-NP | 400–1600 nm | 150 | 800 nm |
| 1-015-1000-NP | 600–2000 nm | 150 | 1090 nm |
| 1-015-1250-NP | 800–2500 nm | 150 | 1250 nm |
| 1-015-2000-NP | 1.1–4 µm | 150 | 2 µm |
| 1-015-3000-NP | 2.2–4 µm | 150 | 3 µm |
| 1-015-4000-NP | 2.5–8 µm | 150 | 4 µm |
| 1-0075-8000-NP | 6–16 µm | 75 | 8 µm |
| 1-0075-10000-NP | 6–18 µm | 75 | 10 µm |
| 1-0075-12000-NP | 9–20 µm | 75 | 12.0 µm |
| 1-0050-12000-NP | 8–22 µm | 50 | 12 µm |
Related Products
- SD25 Series — Motorized Filter Wheels
- FLG Series — Optical Fibers and Fiber Bundles
- SAC Series — Sample Chambers for Fluorescence
Browse all: Monochromator Accessories · Spectroscopic Instruments
Models: 1-360-180-500-NP, 1-240-250-600-NP, 1-240-190-800-NP, 1-200-300-900-NP, 1-180-350-900-NP, 1-180-190-900-NP, 1-120-190-800-NP, 1-120-400-1200-NP, 1-240-240-NP, 1-240-300-NP, 1-180-400-NP, 1-180-500-NP … · Contact WaveQuanta for a quote, configuration advice and lead time.
| Grating Size | 68 × 68 mm |
| Groove Density Range | 50–3600 g/mm |
| Wavelength Coverage | 180 nm to 22 µm across the range |
| Grating Types | Holographic (8 models) and ruled (36 models) |
| Holographic 1-360-180-500-NP | 3600 g/mm, blaze 300 nm, 180–400 nm |
| Holographic 1-240-250-600-NP | 2400 g/mm, blaze 300 nm, 250–600 nm |
| Holographic 1-240-190-800-NP | 2400 g/mm, blaze 250 nm, 190–600 nm |
| Holographic 1-200-300-900-NP | 2000 g/mm, blaze 475 nm, 300–720 nm |
| Holographic 1-180-350-900-NP | 1800 g/mm, blaze 500 nm, 350–800 nm |
| Holographic 1-180-190-900-NP | 1800 g/mm, blaze 250 nm, 190–800 nm |
| Holographic 1-120-190-800-NP | 1201.6 g/mm, blaze 250 nm, 190–800 nm |
| Holographic 1-120-400-1200-NP | 1200 g/mm, blaze 700 nm, 400–1200 nm |
| Mechanical Scan Range (Omni-λ) | 0–400 nm (3600 g/mm) to 0–9600 nm (150 g/mm) |
| Reciprocal Dispersion, 3600 g/mm | 1 / 0.66 / 0.43 / 0.3 nm/mm (Omni-λ200i / 300i / 500i / 750i) |
| Reciprocal Dispersion, 1200 g/mm | 3.6 / 2.28 / 1.5 / 1 nm/mm (Omni-λ200i / 300i / 500i / 750i) |
| Reciprocal Dispersion, 150 g/mm | 31.89 / 20.13 / 12.97 / 8.77 nm/mm (Omni-λ200i / 300i / 500i / 750i) |
Product Family: Monochromator Accessories (6 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| DCS210PC Photon Counter, 100 Mcps, 10 µs–10 s Lifetime Measurement |
DCS210PC
| — | — | — | Contact |
| DCS300PA Dual-Channel Data Acquisition System, 16-bit, Built-in Preamplifiers |
DCS300PA
| — | — | — | Contact |
| SAC Series Sample Chambers for Fluorescence, PL, Transmission and Reflection |
SAC Series
| — | — | — | Contact |
| FLG Series Optical Fibers and Fiber Bundles, 200–2400 nm, SMA905, NA 0.22 |
FLG Series
| — | — | — | Contact |
| SD25 Series Motorized Filter Wheels, Six Positions, Ø25 mm Filters |
SD25 Series
| — | — | — | Contact |
| Diffraction Gratings for Monochromators, 50–3600 g/mm, 68 × 68 mm Current |
Diffraction Gratings
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