632nm Radial Polarization Converter

Product Details Converts Linear Polarization to Radial or Azimuthal Converts Circular Polarization to an Optical Vortex (Donut-Shaped Beam) High Damage Thresholds in the Nano- and Femtosecond Range Higher-Order Versions Can Generate Higher Order Polarization Patterns and Optical Vortices Radial Polarization Converters (S-waveplates) are space-variant retarders designed to convert linear polarization to radial or azimuthal polarization to reduce laser beam spot size. Alternatively, they can be used to convert circularly polarized light to an optical vortex (donut-shaped beam). The converters are manufactured by inscribing self-organized nanogratings inside fused silica using a femtosecond laser. Radial Polarization Converters (S-waveplates) are beneficial for a variety of polarization-sensitive applications. Radially polarized beams are highly efficient at micro-drilling high aspect-ratio features in metal, while vortex (donut-shaped) beams are ideal for STED or two-photon excitation fluorescence microscopy, laser micromachining, and optical tweezer applications (multiple particle trapping). Higher Order Radial Polarization Converters (S-Waveplates) can generate higher order polarization patterns, optical vortices with increased topological charge, or vector Bessel beams when used in combination with axicons . These types of beams are used in micromachining applications, such as microhole drilling of transparent materials. Specifications General Type: Polarization Converter Physical & Mechanical Properties Clear Aperture CA (mm): 6.0 Diameter (mm): 25.40 Thickness (mm): 3.00 ±0.1 Dimensional Tolerance (mm): +0.0/-0.1 Construction: Self-Organized Nanogratings Optical Properties Design Wavelength DWL (nm): 632 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) Surface Quality: 20-10 Transmission (%): 80-94 (wavelength dependent) Wavelength Range (nm): 612 – 652 Surface Flatness (P-V): λ/8 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 20 J/cm 2 @ 1064nm, 3.5ns Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 247: Compliant ×