Features
- Standard wavelength range 237 nm to 2021 nm (more on request)
- 15 mm free aperture
- 1/2λ and 1/4λ retardance
- AR-coated
- Material: crystalline quartz – laser grade
The 17.5 mm zero order waveplates provide users with a high-power crystalline quartz retarder with a free aperture of 15 mm. The waveplates are air spaced and have a stainless steel spacer between two crystalline quartz plates, which form the zero order capability. They are much less sensitive to temperature fluctuations than multiple order waveplates and have a higher thermal stability and power draw than contacted or cemented waveplates.
waveplates | 17.5 mm zero order |
Thickness | 0.3 to 1.3 mm |
Wave front deformation | λ/10 @ 632.8 mm |
Surface quality | 10/5 scratch/dig |
Parallelism | 0.5 seconds |
Retardance tolerance | ± 0.005 λ @ 632.8 nm |
Coating | Antireflective, R < 0.25% per surface |
Damage threshold | 1 kW/cm2 – CW, 3.5 J/cm2 @ 10 ns |
Diameter | 17.5 mm, +0.00/-0.25 mm without retaining ring; 25.4 mm, +0.00/-0.25 mm in retaining ring |
Thickness in retaining ring | 7.8 mm, +0.00/-0.25 mm |