Chinese wholesale Parallel Windows - WAVE PLATE – WISOPTIC
Chinese wholesale Parallel Windows - WAVE PLATE – WISOPTIC Detail:
A wave plate, also called a phase retarder, is an optical device that changes the polarization state of light by generating an optical path difference (or phase difference) between two mutually orthogonal polarization components. When the incident light passes through wave plates with different types of parameter, the exit light is different, which may be linearly polarized light, elliptically polarized light, circularly polarized light, etc. At any particular wavelength, the phase difference is determined by the thickness of the wave plate.
Wave plates are commonly made of birefringent material with precise thickness such as quartz, calcite or mica, whose optical axis is parallel to the wafer surface. Standard wave plates (including λ/2 and λ/4 wave plates) are based on air-spaced construction that allows their use for high-power applications with damage threshold higher than 10 J/cm² for 20 ns pulses at 1064 nm.
Half (λ/2) Wave Plate
After passing through the λ/2 wave plate, the linearly polarized light is still linearly polarized, however, there is angle difference (2θ) between the vibration plane of the combined vibration and the vibration plane of the incident polarized light. If θ=45°, the vibration plane of the exit light is perpendicular to the vibration plane of the incident light, that is, when θ=45°, the λ/2 wave plate can change the polarization state by 90°.
Quarter (λ/4) Wave Plate
When the angle between the incident vibration plane of polarized light and the optical axis of the wave plate is θ=45°, the light passing through the λ/4 wave plate is circularly polarized. Otherwise, after passing through the λ/4 wave plate, a circularly polarized light will be linearly polarized. A λ/4 wave plate has equal effect with a λ/2 wave plate when it allows the light to pass through twice.
WISOPTIC Specifications – Wave Plates
Standard | High Precision | ||
Material | Laser-grade crystalline quartz | ||
Diameter Tolerance | +0.0/-0.2 mm | +0.0/-0.15 mm | |
Retardation Tolerance | ± λ/200 | ± λ/300 | |
Clear Aperture | > 90% of central area | ||
Surface Quality [S/D] | < 20/10 [S/D] | < 10/5 [S/D] | |
Transmitted Wavefront Distortion | λ/8 @ 632.8 nm | λ/10 @ 632.8 nm | |
Parallelism (single plate) | ≤ 3” | ≤ 1” | |
Coating | R<0.2% at central wavelength | ||
Laser Damage Threshold | 10 J/cm² @ 1064 nm, 10 ns, 10 Hz |
Product detail pictures:
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Our pursuit and company goal is to "Always satisfy our customer requirements". We continue to develop and design superior quality products for both our old and new customers and achieve a win-win prospect for our clients as well as us for Chinese wholesale Parallel Windows - WAVE PLATE – WISOPTIC, The product will supply to all over the world, such as: Italy, Brunei, Korea, Our expert engineering team will generally be prepared to serve you for consultation and feedback. We are able to also offer you with free of charge samples to meet your requirements. Best efforts will likely be produced to provide you the best service and merchandise. When you are keen on our business and products, please speak to us by sending us emails or call us quickly. In an effort to know our products and company extra, you may come to our factory to view it. We will generally welcome guests from all over the world to our business to create business relations with us. Please feel cost-free to speak to us for small business and we believe we'll share the best trading experience with all our merchants.
By Helen from USA - 2018.03.03 13:09
The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
By Nainesh Mehta from Uzbekistan - 2018.09.29 17:23