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- Quartz Waveplate --ture zero order/ zero order/ mulitple order
Quartz Waveplate --ture zero order/ zero order/ mulitple order
OVERVIEW
Photonchina’s waveplates fabrication starts from quartz materials cutting with their axes oriented within a few arcminutes before being polished to a laser-quality finish, arcsecond parallelism, and <λ/10 wavefront. Their thickness tolerance is a only small fraction of a micron. To verify retardation tolerances, specially-trained optical technicians use purpose-built test gear. After anti-reflective coating, zero order and achromatic waveplates are matched in pairs and accurately aligned to each other within their cell mounts.
SPECIFICATION
- Waveplate Type: Zero Order, Multiple Order, Achromatic
- Material: Quartz and MgF2, MgF2, Quartz, N-BK7, Custom
- Mounting: Mounted, Unmounted
- Shape: Round, Square, Rectangle, Custom
- Size: 1-80 mm
- Center Wavelength: 850/1064/1550 nm
- Retardation: Lambda/2, Lambda/4, Lambda, Other
- Retardation Accuracy: Custom, +/- Lambda/20, +/- Lambda/50, +/- Lambda/100, +/- Lambda/200, +/- Lambda/300, +/- Lambda/400, +/- Lambda/500
- Wavefront Distortion: <= Lambda/20, <= Lambda/10, <= Lambda/8, <= Lambda/6, <= Lambda/4, <= Lambda/2, Custom
- Surface Quality (Scratch-Dig): 10-5, 20-10, 40-20, 60-40, 80-50
- Dimension Tolerance: +0.0, -0.1mm
- Parallelism: <1 arc second
Applications
Zero Order Waveplate
The zero order waveplate is designed to give a retardance of zero full waves, plus the desired fraction. Zero order waveplate shows better performance than low/multiple order waveplates. It has broad bandwidth and a lower sensitivity to temperature and wavelength changes. It should be considered for more critical applications。
It is constructed of two low order waveplates with their axes crossed. Thus,the effect of the first plate is canceled by the second,except for the residual difference between them. There are normally three different structures as follows,
Optical Contact
Cemented by Epoxy
Air spaced
KEY FEATURES
Wavepalte Types:
Photonchina’s waveplates include octadic waveplate (1/8 waveplate),quarter waveplates(1/4 waveplate), half wave plates(1/2 waveplate) and full waveplate
Both circular aperture and quadratic aperture are available.
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