670nm, λ/4 Precision Zero Order Retarder

Product Details λ/4 and λ/2 Retardance Excellent Angular Field of View Birefringent Polymer Stack High Damage Threshold of 500 W/cm 2 Precision Zero Order Waveplates (Retarders) feature carefully aligned birefringent polymer sheets laminated between two precision N-BK7 windows, and are available in standard λ/4 and λ/2 options for common visible and NIR wavelengths. These polymer waveplates (retarders) offer excellent angular field of view because they are true zero-order retarders. Also, they will experience less than 1% retardance change over a ±10° angle of incidence. Each Precision Zero Order Waveplates (Retarders) is mounted in a metal ring with the fast axis clearly marked. Specifications General Type: Polymer Waveplate Physical & Mechanical Properties Clear Aperture CA (mm): 10.16 Diameter (mm): 25.40 Dimensional Tolerance (mm): ±0.127 Construction: Birefringent Polymer Stack Optical Properties Design Wavelength DWL (nm): 670 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/4 Surface Quality: 40-20 Transmitted Wavefront, RMS: ≤λ/5 @ 632.8nm Retardance Tolerance: λ/350 Beam Deviation (arcmin): 1.00 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 Retardance Order: 0 Threading & Mounting Mount Thickness (mm): 6.35 ±0.508 Environmental & Durability Factors Operating Temperature (°C): -20 to +50 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × REACH 241: Compliant ×