Wide Angle λ/2 Waveplate, 25.4mm Dia. 1550nm

Product Details Up To λ/250 Retardance Tolerances Out to 30° AOI Near Zero-Order Laminated Polymer Construction Ideal for Applications with Wide Acceptance Angles Wide Angle Waveplates are designed to accept a large range of input angles, up to 30° AOI, with minimal retardance shift at non-zero angles of incidence. These waveplates are available with visible or NIR designed wavelengths of 532, 633, 1064 or 1550nm and with λ/2 or λ/4 retardance values. Featuring ≤λ/250 quarter-wave and ≤λ/100 half-wave retardance accuracies at the center, these waveplates are ideal for applications that require low sensitivity to AOI. Wide Field Waveplates are mounted and constructed with birefringent polymer on a N-BK7 substrate and coated with BBAR coatings. Note: The fast axis is marked with a line. Specifications General Type: Polymer Waveplate Physical & Mechanical Properties Clear Aperture CA (mm): 17.8 Diameter (mm): 25.40 Dimensional Tolerance (mm): +/- 0.13 Optical Properties Angle of Incidence (°): ±30 Design Wavelength DWL (nm): 1550 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Polymer Film on N-BK7 Reflection (%): 0.5 Retardance: λ/2 Surface Quality: 60-40 Transmitted Wavefront, RMS: ≤ λ/2 @ 632.8nm Retardance Tolerance: ≤ λ/250 @ 0 deg AOI, λ/100 at 30 deg Beam Deviation (arcmin): ≤ 1 arcmin Threading & Mounting Mount Thickness (mm): 6.35 Environmental & Durability Factors Operating Temperature (°C): 0 – 40 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × REACH 241: Compliant ×