產品分類
.JPG)
寬頻中紅外光偏振鏡
Standa
14PIR
產品特色
- Extremely broadband
- Wide acceptance angle
- Polyethylene polarizers for 20-1000 microns are also available
- Long life time
A fine array of parallel conducting wires whose period is smaller compared to the wavelength of incident radiation will transmit one polarisation and reflect the other. The component of the radiation whose electric vector is perpendicular to the direction of the wires and induces current in the wires will be transmitted and the parallel vector reflected. Mid-IR polarizers are produced by holographic method (i.e. laser interferometry) or mechanically ruled. These polarisers do not suffer from beam displacement, are not affected by diverging or converging beam, have wide acceptance angle without degradation of performance and portable.
| Tmax graph | Tmin graph |
Standard Specifications
| Dimension tolerance: | +/- 0.5 mm |
| Wire grid spacing: | 2700 grooves/mm (nominal) for holographic type polarizers 1200 grooves/mm (nominal) for mechanically ruled polarizers |
| Surface flatness: | <λ/20 @ 10.6 µm (up to 25 mm CA) <λ/10 @ 10.6 µm (up to >25 mm CA)* |
| Parallelism error: | |
| Coating: | Not coated |
| Laser induced damage threshold: | >100 W/cm2 CW or > 2 J/cm2 100 ns pulsed for mechanically ruled polarizers |
*Except KRS-5 material
| Material | Type | Clear aperture, mm | Mount diameter, mm | Extinction ratio | Product ID |
| KRS-5 | Holographic | 18 | 25 | 150:1 @ 3 µm; 300:1 @ 15 µm | 14PIR-H-18-25-1 |
| KRS-5 | Holographic | 25 | 35 | 150:1 @ 3 µm; 300:1 @ 15 µm | 14PIR-H-25-35-1 |
| CaF2 | Holographic | 18 | 25 | 150:1 @ 3 µm; 300:1 @ 8 µm | 14PIR-H-18-25-2 |
| CaF2 | Holographic | 25 | 35 | 150:1 @ 3 µm; 300:1 @ 8 µm | 14PIR-H-25-35-2 |
| BaF2 | Holographic | 18 | 25 | 150:1 @ 3 µm; 300:1 @ 10 µm | 14PIR-H-18-25-3 |
| BaF2 | Holographic | 25 | 35 | 150:1 @ 3 µm; 300:1 @ 10 µm | 14PIR-H-25-35-3 |
| ZnSe | Holographic | 18 | 25 | 150:1 @ 3 µm; 300:1 @ 10 µm | 14PIR-H-18-25-4 |
| ZnSe | Holographic | 25 | 35 | 150:1 @ 3 µm; 300:1 @ 10 µm | 14PIR-H-25-35-4 |
| CaF2 | Ruled | 18 | 25 | 50:1 @ 3 µm; 80:1 @ 5 µm | 14PIR-R-18-25-2 |
| CaF2 | Ruled | 34 | 50 | 50:1 @ 3 µm; 80:1 @ 5 µm | 14PIR-R-34-50-2 |
| ZnSe | Ruled | 18 | 25 | 50:1 @ 3 µm; 75:1 @ 5 µm; 100 @ 10.6 µm | 14PIR-R-18-25-4 |
| ZnSe | Ruled | 34 | 50 | 50:1 @ 3 µm; 75:1 @ 5 µm; 100 @ 10.6 µm | 14PIR-R-34-50-4 |
相關產品
.jpg)
.JPG)
.JPG)
雷射相關資訊
