
Analyzer, Testing Equipment
61-6947-62 Surface Accuracy Guaranteed Mirror 248nm φ12.7mm HTFM-12.7C08-248
Product Description
Product Model: 61-6947-62Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6947-62
Product Brand: SIGMAKOKI CO., LTD.
Features
- By optimizing the material, thickness and coating conditions of the substrate, we have achieved a mirror with high surface accuracy.
- Assures surface accuracy λ/10 after coating.
- It has higher surface accuracy (after coating) than conventional inductive multi-film planar mirrors (TFM).
- Synthetic quartz is ***d as the substrate, and the thickness of the substrate is increased to increase the rigidity of the substrate.
- We have a lineup of mirrors with high reflectivity for each wavelength of ultraviolet laser and YAG laser.
- HTFM-MHG is also available with a mirror glued to the holder to guarantee surface accuracy.
- * Reflectance wavelength characteristics of dielectric multilayer films vary dep***ing on the polarization state of the incident beam.
- * P-polarized light has a lower reflectivity and a narrower reflection band than S-polarized light.
- * The reflectance of the specification is expressed as the average value of the reflectance of P-polarized light and S-polarized light.
- Reflectance may be low when ***d at angles other than 45°.
- Reflectivity may be low when the watch is ***d at wavelengths other than the adaptive wavelength.
- * Surface accuracy guarantee data is not attached to the product.
Spec
-
[
common specification]
- Material: Synthetic quartz
- Coating: Dielectric multi-layered film
- Incident angle: 45°±3°
- After coat surface accuracy: λ/10
- Parallelism: <3′
- Scratch - dig: 10?5
- Effective diameter: 80% of the outer diameter
- Back: Polished surface
- [Individual specification]
- Adaptive wavelength: 248nm
- Outer diameter φD: φ12.7mm
- Thickness t: 8mm
- Reflective ratio: >99.2%
- Laser durability *: 2J/cm2
- *Laser pulse width 10ns, Repeat frequency 20Hz
- RoHS conform product
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