Air Slits / FSL
Mounted metal foil with a pinhole or slit 400μm or less. Used in spatial filters, laser diffraction experiments and microscopic magnification correction.
A precision etching process creates holes with high circularity and slits with high parallelism.For YAG lasers (1064nm) and CO2 lasers (10.6μm), pinholes made of high copper coated with gold should be used. Pinholes and slits are pre-mounted in aluminum frames for ease of handling and mounting.
Common Specifications
| Part Number | PA | PA-HAL | FSL |  |
|---|---|---|---|---|
| Hole Geometry | Perfect circle | Perfect circle | Slit | |
| Pinhole Material | Nickel | Copper | Nickel | |
| Foil Thickness | 20±5μm | 20±5μm | 20±5μm | |
| Pinhole Finish | None | Gold coat (both faces) | None | |
| Damage Threshold (Reference) | - | 50MW/cm2(@700nm) | - | |
| Wavelength Used | Any | 700nm - 10.6μm |
Any | |
| Frame Material | Aluminum | |||
| Frame Finish | Black Anodized | |||
Specifications
| Perfect circle | |||
|---|---|---|---|
| Part Number | Pinhole Diameter | Weight | Outline Drawing |
| PA-1 | φ1＋1/-0μm | 0.001kg | |
| PA-2 | φ2±1μm | 0.001kg | |
| PA-5 | φ5±2μm | 0.001kg | |
| PA-10 | φ10±2μm | 0.001kg | |
| PA-15 | φ15±2μm | 0.001kg | |
| PA-20 | φ20±2μm | 0.001kg | |
| PA-25 | φ25±3μm | 0.001kg | |
| PA-30 | φ30±3μm | 0.001kg | |
| PA-40 | φ40±3μm | 0.001kg | |
| PA-50 | φ50±4μm | 0.001kg | |
| PA-100 | φ100±5μm | 0.001kg | |
| PA-200 | φ200±6μm | 0.001kg | |
| PA-400 | φ400±8μm | 0.001kg | |
| Perfect Circle for High Energy Laser | Slit | |||||
|---|---|---|---|---|---|---|
| Part Number | Pinhole Diameter | Weight | Part Number | Slit Width | Length | Weight |
| PA-5HEL | φ5±2μm | 0.001kg | FSL-5 | 5±2μm | 3mm | 0.001kg |
| PA-10HEL | φ10±2μm | 0.001kg | FSL-10 | 10±2μm | 3mm | 0.001kg |
| PA-15HEL | φ15±2μm | 0.001kg | FSL-25 | 25±3μm | 3mm | 0.001kg |
| PA-25HEL | φ25±3μm | 0.001kg | FSL-50 | 50±4μm | 3mm | 0.001kg |
| PA-50HEL | φ50±4μm | 0.001kg | FSL-100 | 100±5μm | 3mm | 0.001kg |
| PA-100HEL | φ100±4μm | 0.001kg | FSL-150 | 150±5μm | 3mm | 0.001kg |
| PA-200HEL | φ200±6μm | 0.001kg | FSL-200 | 200±6μm | 3mm | 0.001kg |
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