Richardson Gratings 2400 Grooves, 30 x 30mm, 200-800nm, Plane Holographic Reflection Grating

Product Details High Diffraction Efficiency Reduced Stray Light and More Accurate Periodicity than Ruled Gratings Wavelength Options from UV to NIR Regions Available Custom Sizes Available Richardson Gratings High Precision Reflective Holographic Diffraction Gratings display reduced light scattering compared with ruled gratings, making them ideal for stray light sensitive applications such as Raman spectroscopy. The gratings are recorded in a photoresist by exposure to an intense laser interference pattern and then chemically developed to reveal a fringe pattern with a sinusoidal cross section. Gratings for use from the UV to NIR spectral regions are available. 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: 420H Physical & Mechanical Properties Dimensions (mm): 30.0 x 30.0 ±0.1 Clear Aperture (%): >90 Construction: Holographic Grating Length (mm): 30.00 Thickness (mm): 6.00 ±0.5 Width (mm): 30.00 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): 2400 Wavelength Range (nm): 200 - 800 Blaze Wavelength (nm): 270 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, P and Average Spectral Order (m): 1 Regulatory Compliance Certificate of Conformance: View ×