Dielectric Plate Beamsplitter / PSM33-30C03-10-550
Plate-type beamsplitters are dielectric multi-layer coatings on a parallel plate or a wedge substrate. They are designed to divide beams at a reflected light (R) : transmission light (T) ratio of 1:2 or 1:3. The rear surface is coated with anti-reflection (AR).
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Part Number
PSM33-30C03-10-550
S$269.88
◦The dielectric multi-layer films have virtually zero light absorption and very low light intensity loss. However, transmittance and reflectance may vary according to wavelength, polarization and incident angles. Some deviation of the transmission optical path or ghosting may occur. To prevent ghosting, use wedge beamsplitters.
| Catalog Code | W3021 |
|---|---|
| RoHS | Yes |
| CE | No |
| Download Product's Datasheet | |
| Guide | ▶Please contact our Sales Division for customized products. (Customized on size, wavelength or R:T, etc.) WEB Reference Catalog Code/W3802 ▶For a guarantee in reflected wavefront error or transmitted wavefront error |
| Attention | ▶The transmission curve on the graph is based on actual measurements and may vary from different production lots. ▶Surface flatness is the reflected wavefront distortion of the surface prior to coating. ▶Compared to precision parallel plate type splitters, wedged substrate type beam splitters can prevent ghosting caused by rear surface reflection and significantly increase the displacement of the optical path. ▶Dielectric multi-layer coated beamsplitters sometimes do not function effectively in specified R:T ratios. If this should occur, first check the polarization characteristics of the light source (laser). Do keep in mind that lasers used in the semiconductor field emit a linear polarized light. ▶Use only non-polarized light or circular polarized light as incident light for dielectric multi-layer coated beam splitters. Using polarized light may result in R:T ratios that vary according to polarization components. |
| Transmittance at 400・700nm | ＜80％ |
| Transmittance at 550nm | 67±3％ |
| Thickness t | 3mm |
| Coating | Front surface ; Dielectric multilayer coating Rear surfaces ; Multilayer antireflection coating |
| Surface Quality (Scratch-Dig) | 10−5 |
| Wavelength Range | 400～700nm |
| Diameter φD | φ30mm |
| Surface flatness | λ/10 |
| Incident angle | 45° |
| Parallelism | ＜5″ |
| Clear aperture | 90% of the diameter |
| Laser Damage Threshold | 2.1J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz) |
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