Coating type
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Properties and Applications
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Antireflection
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Single layer MgF2
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Applied to materials with refractive indices from 1.45 to 2.4. The most popular antireflective coating for visible wavelengths. It is insensitive to change in incidence angles.
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Multilayer “V”
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Used to provide low reflectance within a narrow durable wavelength band for most laser applications. Minimum reflection can be less than 0.1%
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Broadband Multilayer
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These coatings have excellent performance over a broad spectral broadband. Coating performance is sensitive to angle of incidence.
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Dual wavelength Band
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Offer very low reflectance at low widely spaced wave-lengths, such as Nd:YAG Laser(1064) and its second harmonic(532)
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Partial Reflection
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Narrow Band
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Provide 50% reflection and transmission at an angle of 45°incidence for a single wavelength. Perfect for beamsplitter applications. Transmission/reflection (T/R) ratio of 20/80. Additional T/R ratios for beamsplitters are available upon request.
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Broadband
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Provide 50% reflection and transmission over a wide bandwidth. PHOSCTECH also provides coatings with different R/T ratios and specific angles of incidence.
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Beamsplitter
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Laser Line
Polarizing Beamsplitters
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High reflection for s-polarized and antireflection for p-polarized for laser applications
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Broadband Polarizing Beamsplitters
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Wide wavelength bandwidths provide high reflection to s-polarized and antireflection to p-polarized.
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Dichroic Beamsplitter Mirrors
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These coatings separate the laser fundamental and the pump wavelength or the fundamental and the second harmonic. They are specifically applied to laser morrors
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DPSS laser
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Diode Pumped laser
Optics Coating(DPO)
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These coatings are designed for a diode pumped laser.
They can be deposited on a variety of substrates and have a high damage threshold.
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High Reflection
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Dielectric High
Reflective Coatings
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Provide high reflectance over a broad bandwidth and are ideal for tunable lasers or white light applications.
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Metallic High
Reflective Coatings
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Metallic coatings have low peak reflectance, mechanical durability and a high damage threshold, but they have an extremely broad bandwidth and low cost. They are insensitive to angle of incident light and polarization.
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