The 10QM20HB.42 High-Energy Nd:YAG Harmonic Beamsplitter is 1.0 in. (25.4 mm) in diameter with high reflectivity at 266 nm, and high transmission at 532 nm. The back surface is AR coated for 532 and 1064 nm. Our harmonic beam splitters are designed to separate Nd:YAG laser harmonics after frequency multiplication. These 25.4 mm diameter optics are precision polished select grade fused silica coated with hard refractory multilayers for high damage threshold. Harmonic beamsplitters are sometimes called Dichroic Filters or Beam Combiners.
Технические характеристики
- Type Beamsplitter
- Diameter 25.4 mm
- Reflectance Band 266 nm
- Material UV Grade Fused Silica
- Transmittance Band 532 nm
- Coating Code HB.42
- Antireflection Coating V-coat AR, R
- Angle of Incidence 45°
- Reflection Ravg > 99.5%
- Transmission Tavg>95%
- Wavefront Distortion &le,/4 at 632.8 nm over the clear aperture
- Damage Threshold 5.0 MW/cm2 CW, 5.0 J/cm2 with 0.1-100 nsec pulses @ 1064 nm, typical
- Surface Flatness &lambda,/10 at 632.8 nm over the clear aperture
- Surface Quality 10-5 scratch-dig
- Diameter Tolerance +0/-0.25 mm
- Thickness 6.35 mm
- Thickness Tolerance ±0.5 mm
- Wedge &le,3 arc min
- Clear Aperture > central 80% of diameter
- Chamfers 0.25-0.76 mm face width
- Chamfers Angle Tolerance 45° ±15°
- Durability MIL-C-675C, moderate abrasion million cycles
- Cleaning See How to Clean Optics
