The true zero order waveplate means that the thickness of waveplate is very thin (less than 0.1mm) which make the true zero order waveplate excellent in temperature, wavelength and incident angle (about 20) bandwidth. Therefore, it is excellent choice for the highly accurate application. It is cemented with a block of glass which is limited to low and medium power application.
Key features:
- broad spectral bandwidth
- wide temperature bandwidth
- wide angle bandwidth
- cemented by epoxy
Technical capability
Material: Crystal quartz / bk7 optical glass
Dimension tolerance: +0.0, -0.1mm
Wavefront distortion: 8 @ 632.8nm
Retardation tolerance: 500
Wavelength range: 400-2100nm
Parallelism: < 1 arc second
Surface quality: 20-10 scratch & dig
Coating: Ar/ar coating, r < 0.2% on both surface at central wavelength