320 Grooves/mm, 30mm Dia., 230nm Polychromator Concave Diffraction Grating

Product Details High Grating Efficiency and Low Stray Light Holographically Produced to Minimize Aberrations Rowland Circle or Polychromator Mounting Configurations ZEISS Concave Diffraction Gratings combine dispersive and imaging properties into a single optical component for integration into spectroscopic systems. These concave gratings are produced holographically, optimizing the focal plane and minimizing aberrations over the wavelength range of the grating. ZEISS Concave Diffraction Gratings are designed to have high grating efficiency and minimized stray light, improving the spectral resolution and signal to noise ratios of spectrometers. Diffraction gratings with Rowland Circle or polychromator mounting configurations are available. Rowland Circle gratings are ideal for spectroscopic systems designed on a Rowland Circle while polychromator gratings are optimized for setups with a fixed arrangement of the entrance slit, grating, and plane sensor. Specifications General Type: Polychromator Physical & Mechanical Properties Diameter (mm): 30.00 Groove Profile: Blazed Edge Thickness ET (mm): 8.0 Optical Properties Groove Density (grooves/mm): 320 ±1 Blaze Wavelength (nm): 230 Coating: Bare Aluminum Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-BK7 Diffraction Efficiency (%): ≥65 @ 220nm ≥58 @ 300nm ≥20 @ 500nm Radius of Curvature (mm): 109.77 Angle of Incidence, α (°): -3.8 Diffraction Angle, β @ 200nm (°): 7.4 Object Distance, l a @ 200nm: 110 Focal Distance, I b @ 200nm: 108.23 Diffraction Area Diameter (mm): ≥24 Regulatory Compliance Certificate of Conformance: View ×