Help with Waveplates and Retardation Plates specifications:
Waveplate / Retardation Plate Type
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| Quarter Wave (λ/4) | Quarter waveplates are made of a double-refracting crystal. They have such a density that a phase difference of one-quarter cycle is formed between the ordinary and extraordinary elements of light passing through. | ||
| Half Wave (λ/2) | Half waveplates are made of a double-refracting crystal. They have such a density that a phase difference of one-half cycle is formed between the ordinary and extraordinary elements of light passing through. | ||
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| Waveplate / Retardation Plate Order | The retardation value of a multiple order waveplate is strongly dependent on temperature, wavelength, and angle of incidence. Zero order waveplates do not have this dependency. | ||
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| Zero Order | If the phase difference at emergence is the actual phase shift and not some equivalent multiple, the retardation is said to be zero order (first order). | ||
| Multiple Order | If the phase difference at emergence is the not the actual phase shift and some equivalent multiple, the retardation is said to be multiple order. | ||
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Performance
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| Polarizer Application | |||
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| Infrared | Polarizers that are designed for use in the 750 nm to 2500 nm wavelength range. | ||
| Visible | Polarizers that are designed for use in the 380 nm to 750 nm wavelength range. | ||
| Ultraviolet | Polarizers that are designed for use in the 4 nm to 380 nm wavelength range. | ||
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| Wavelength Range: | The wavelength range the depolarizer was designed to operate it. | ||
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| Diameter: | The diameter of the depolarizer when viewed straight on. | ||
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| Clear Aperture | This is the clear aperture of retardation plates. | ||
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| Thickness | This is the thickness of retardation plates. | ||
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| Transmittance: | Transmittance is the ratio of the radiant power transmitted by a polarizer to the incident radiant power. | ||
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| Operating Temperature: | The temperature range in which the device is designed to operate. | ||
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Material
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| Polarizer Material | |||
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| Achromatic | Achromatic polarizers have two plates that are used so that the spectral dispersion of birefringence in each plate cancels out over a defined spectral range. | ||
| BK7 Glass | BK7 glass is boro-crown glass (borosilicate glass). BK7 has a wavelength range of 330-2100 nm. | ||
| Calcite | Calcite is a bifringent material that is used for retardation plates.o-1.658; ne-1.486 | ||
| Mica | Mica provides low-cost, general purpose retardation plates. Mica does, however, have a relatively strong absorption and low resistance to damage. It should therefore be limited to low power applications. | ||
| Quartz | Quartz is a bifringent material that is used for retardation plates. no-1.544; ne-1.553 | ||
| SF2 Glass | SF2 Glass is dense flint (alkaline silicate glasses with 47% wt. PbO). | ||
| UV grade fused Silica | UV grade fused silica offer improved transmission in the ultraviolet region compared to crown glass. The wavelength range is 200-2500 nm. | ||
| Other Material | Any other material type not listed. | ||
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Features
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| Antireflective Coating | Polarizing beamsplitter cube has an antireflective coating. | ||
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| Broadband | The polarization rotator has uniform optical characteristics over a wide area of the spectrum. | ||
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| Pigtail | The polarization rotator has a short length of optical fiber permanently fixed to a component. | ||
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Polarizer Surface
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| Surface Quality: | Surface quality of the calcite. | ||
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| 10-5 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 10 / 5 indicates the average diameter of the digs to be .05 mm and the average length of a scratch is .10 mm. | ||
| 20-10 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 20 / 10 indicates the average diameter of the digs to be .10 mm and the average length of a scratch is .20 mm. | ||
| 40-20 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 40 / 20 indicates the average diameter of the digs to be .20 mm and the average length of a scratch is .40 mm. | ||
| 60-40 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 60 / 40 indicates the average diameter of the digs to be .40 mm and the average length of a scratch is .60 mm. | ||
| 80-50 Scratch / Dig | A dig is a defect on a polished optical surface that is nearly equal in terms of its length and width. A scratch is a defect on a polished optical surface whose length is many times its width. 80 / 50 indicates the average diameter of the digs to be .50 mm and the average length of a scratch is .80 mm. | ||
| Other | Any other Scratch / Dig surface quality rating. | ||
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| Surface Flatness: | The surface flatness of the plate polarizer, given in terms of λ(λ=633nm). | ||
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| λ/2 | The biggest variation in surface height for the polarizer is no more then λ/2 (λ=633nm). | ||
| λ/4 | The biggest variation in surface height for the polarizer is no more then λ/4 (λ=633nm). | ||
| λ/5 | The biggest variation in surface height for the polarizer is no more then λ/5 (λ=633nm). | ||
| λ/8 | The biggest variation in surface height for the polarizer is no more then λ/8 (λ=633nm). | ||
| λ/10 | The biggest variation in surface height for the polarizer is no more then λ/10 (λ=633nm). | ||
| λ/20 | The biggest variation in surface height for the polarizer is no more then λ/20 (λ=633nm). | ||
| Other | Any other surface flatness. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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