Zero Order Wave Plate 25.4mm

Tower's Zero Order Waveplates deliver high-performance Crystal Quartz retarders with a 23mm clear aperture. These air-spaced waveplates, featuring a stainless steel spacer between two crystal quartz plates, offer zero-order capability and are less sensitive to temperature variations than multi-order waveplates. They exhibit higher thermal stability and power handling capability, with no failures from coming apart. Angular alignment is precise. Crafted from Laser quality Crystal Quartz, these waveplates are AR coated on both sides. Standard retardations are or wave. They're available unmounted (25.4mm diameter) or mounted in a 30mm anodized Aluminum ring with a 23mm clear aperture. Standard wavelengths are listed in the chart below, with customizable options within a 1020nm range. Waveplate Specifications include Crystal Quartz material, 0.3 to 2.0 mm thickness range, /10 wavefront distortion, 10-5 scratch/dig surface quality, 0.5 arc second parallelism, and more. They're offered in a wide range of wavelengths, with 1/2 and 1/4 wave retardations, AR coating, and very high laser quality. Custom orders are available.

• High-Performance Crystal Quartz Retarder: Offers a clear aperture of 23mm, air-spaced design with stainless steel spacer, and zero-order capability for reduced temperature sensitivity
• Waveplate Specifications
• Material: Laser-Quality Crystal Quartz
• Waveplate Thickness Range: 0.3 to 2.0 mm
• Wavefront Distortion: /10 @ 632.8nm
• Surface Quality: 10-5 Scratch/Dig
• Parallelism (Wedge): 0.5 arc seconds
• Wavelength Range: As per table
• Retardation Tolerance: 0.005 waves @ 632.8nm
• Coating: Anti-Reflective, R
• Damage Threshold: 1 kW/cm2-CW, 3.5 J/cm2 @10 ns
• Diameter: 25.4mm (unmounted), 30mm (mounted)
• Mounted Thickness: 6.0 mm
• Clear Aperture: 23mm
• Unmounted Diameter: 25.4mm