λ/4 485-630nm, Polymer Achromatic Retarder

Product Details Broad Spectral Range λ/100 Retardance Accuracy λ/4 and λ/2 Retardance High Damage Threshold of 500 W/cm 2 Precision Achromatic Waveplates (Retarders) consist of a polymer stack layered between two precision BK7 windows, and are available in standard λ/4 and λ/2 options for common visible and NIR wavelengths. These waveplates (retarders) will experience less than 1% retardance change over a ±10° angle of incidence. Each Precision Achromatic Waveplates (Retarders) is mounted in a metal ring with the fast axis clearly marked. Specifications General Type: Achromatic Waveplate Physical & Mechanical Properties Clear Aperture CA (mm): 10.16 Diameter (mm): 25.40 Thickness (mm): 6.35 ±0.508 Dimensional Tolerance (mm): ±0.127 Construction: Birefringent Polymer Stack Optical Properties Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-BK7 Reflection (%): 0.5 Retardance: λ/4 Surface Quality: 40-20 Transmitted Wavefront, P-V: λ/4 @ 632.8nm Retardance Tolerance: λ/100 Beam Deviation (arcmin): 1.00 Wavelength Range (nm): 485 – 630 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 500 W/cm 2 Threading & Mounting Mount Thickness (mm): 6.35 Environmental & Durability Factors Operating Temperature (°C): -20 to +50 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × REACH 241: Compliant ×