Thorlabs GR25-1205 diffraction grating

Product Description

Thorlabs GR25-1205 Ruled Reflective Diffraction Grating

This precision-ruled grating is optimized for visible light applications requiring high dispersion and efficiency.

Key Specifications:

• Groove Density: 1200 lines/mm (±5%)

• Blaze Wavelength: 500nm (peak efficiency)

• Dimensions: 25×25×6mm

• Coating: Protected aluminum (>85% reflectivity)

• First-Order Efficiency: >70% at 500nm

Performance Data:

• Angular Dispersion: ~1.73 nm/mrad @ 500nm

• Resolution: ~0.4nm (f/4 system)

• Surface Quality: 60-40 scratch-dig

Condition:

✅ NEW IN ANTI-STATIC PACKAGING
✅ OPTICALLY INSPECTED
⚠ HANDLE BY EDGES ONLY (to preserve coating)

Applications:

• Monochromator calibration

• Laser wavelength selection

• Educational light experiments

• Spectral analysis