Hinds Instruments has four standard dual PEM choices for applications that require different useful apertures and measurements in different spectral regions. The dual PEM models are:
- PEM 100 I/FS50-60
- PEM 100 II/FS20-23
- PEM 100 II/FS42-47
- PEM 100 II/ZS37-50
| MODEL | OPTICAL MATERIAL | RETARDATION RANGE | USEFUL APERTURE | |
|---|---|---|---|---|
| QUARTER WE | HALF WE | |||
| I/FS50-60 | Fused Silica | 170 nm – 2 μm | 170 nm – 1 μm | 16 mm |
| II/FS20-23 | Fused Silica | 400 nm – 2 μm | 400 nm – 1 μm | 56 mm |
| II/FS42-47 | Fused Silica | 400 nm – 2 μm | 400 nm – 2 μm | 27 mm |
| II/ZS37-50 | Zinc Selenide | 2 μm – 18 μm | 1 μm – 10 μm | 14 mm |
