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
Zero order waveplates A quarter-or half-wave retarder made from two plates of quartz with their fast axes crossed; the difference in thickness between the two plates determines the retardance. Zero-order retarders provide accurate retardance over a broad range of wavelengths and dance over a broad range of wavelengths and are more durable than single-element retarders. Cemented zero-order waveplates Cemented zero-order waveplate is constructed of two multi-order waveplates with their axis crossed. Thus, it performs as a zero-order waveplate because of the effect of two plates counteracting each other. It has wide temperature bandwidth and wavelength bandwidth properties. Because it is cemented, the dama zge threshold must be considered (about 10mw/cm2) when used. Key features: - double plates - broad spectral bandwidth - wide temperature bandwidth - ar coated Technical capability Material: Crystal quartz Dimension tolerance: +0.0, -0.2mm Wavefront distortion: λ/4 @ 632.8mm Retardation tolerance:
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