Richardson Gratings 300 Grooves, 12.5 x 25mm, 3μm, Plane Ruled Reflection Grating

Product Details Excellent Efficiency at Blaze Wavelength and Blaze Angle Superior Dimensional Tolerances Ideally Suited for Spectroscopic Applications Custom Sizes Available Richardson Gratings High Precision Plane Ruled Reflective Diffraction Gratings are designed for consistent, predictable performance. The gratings are manufactured from highly accurate masters to provide a high level of repeatability to simplify OEM system designs by reducing the need for tedious alignment adjustments. With λ/4 reflected wavefronts and up to 90% diffraction efficiency, these gratings are specified to meet the needs of the most demanding applications such as high-resolution spectroscopy. Richardson Gratings High Precision Plane Ruled Reflective Diffraction Gratings feature bare aluminum coatings, allowing for options that range from 250 to 10,000nm with excellent peak efficiencies. Custom sizes available on request. Note: The surface of these gratings is very sensitive and should never be touched when handling the optic. If cleaning is required to remove dust particles, non-contact cleaning using clean compressed air is recommended. Specifications General Type: Reflective Diffraction Grating Master Reference: 1156 Physical & Mechanical Properties Dimensions (mm): 12.5 x 25.0 ±0.1 Clear Aperture (%): >90 Construction: Ruled Grating Length (mm): 25.00 Thickness (mm): 6.00 ±0.5 Width (mm): 12.50 Centering of Ruled Area on Substrate (mm): ±1 Alignment of Grooves to Edge (°): ±0.15 Groove Spacing Tolerance (%): <0.05 Optical Properties Groove Density (grooves/mm): 300 Wavelength Range (nm): 1000 - 5000 Blaze Wavelength (nm): 3000 ±25 Blaze Angle (°): 26.7 Peak Efficiency, Typical (%): 72 (2nd order) Coating: Aluminium Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Float Glass Reflected Wavefront, RMS: λ/4 Polarization: S and P Spectral Order (m): 1 Regulatory Compliance Certificate of Conformance: View ×