Coated with high power multilayer antireflection coatings, these fused silica meniscus lenses are used for beam manipulation of Nd:YAG lasers. By orienting the convex surface of the lens towards the laser beam, the light reflecting back into the laser is divergent, minimizing feedback. Designed to the fundamental and harmonic wavelengths of Spectra-Physics VanguardTM and Qunata-Ray® Lasers, these lenses meet the demanding requirements of a range of high power applications. Newport's fused silica meniscus lenses are polished to tight tolerances using master test plates to ensure minimum wavefront distortion. And for high-energy applications, the extreme purity of fused silica eliminates microscopic defect sites that could lead to laser damage.
| Model | MSCN030HAR.33 |
|---|---|
| Lens Type | Spherical |
| Lens Shape | Meniscus |
| Effective Focal Length | -1000 mm |
| Diameter | 2.00 in. (50.8 mm) |
| Antireflection Coating | 1064 nm (HAR.33) |
| Lens Material | UV Grade Fused Silica |
| Center Thickness (Tc) Tolerance | ±0.1 mm |
| Surface Quality | 20-10 scratch-dig |
| Wavelength Range | 195 to 2100 nm |
| Diameter Tolerance | +0/-0.1 mm |
| Te | 3.708 mm |
| Edge Thickness (Te) Tolerance | mm |
| Focal length tolerance | ±1% |
| BFL | -997.64 mm |
| Clear Aperture | ≥central 90% of diameter |
| Centration, Spherical Lenses | ≤3 arc min |
| Surface Accuracy, Irregularity (lambda) | 1/8 λ |
| Surface Accuracy, Power (lambda) | 1.5 λ |
| Chamfers | 0–0.8 mm face width |
| Chamfers Angle/Tolerance | 45° ±15°, typical |
| Cleaning | Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended |
