Coatings

Antireflection Coating – Partial Reflection Coating – Beamsplitter Coating – DPSS Laser Optics Coating – High Reflection Coating – Metal or Metallic Coating

Casix provides a wide variety of coatings from simple single layer antireflective coatings using MgF2 and mirror coatings to complex multilayer dielectric stacks. Typical types of dielectric coatings are BBAR, V-coatings and dual wavelength AR coatings.

Casix owns many kinds of coaters to supply different coatings. We can provide coatings with high surface quality, high damage threshold coatings, and more. At present, we have a Veeco coater from the USA, Optorum coater from Japan, Leybold coater from Germany, a Korea coater and domestic coaters providing great variety and better quality coating options.

coating type		properties and applications
antireflection	Single Layer MgF	Applied to materials with reflective indicies from 1.45 to 2.4. The most popular antireflective coating for visible wavelengths. It is insensitive to change in incidence angles.
	Multilayer "V"	Used to provide low reflectance within a narrow durable wavelength band for most laser applications. Minimum reflection can be less than 0.1%.
	Broadband Multilayer	These coatingshave excellent performance over a broad special broadband. Coating performance is sensitive to angle of incidence.
	Dual Wavelength Band	Offer very low reflectance at two widely spaced wave lengths, such as Nd: YAG Laser (1064) and its second harmonic (532).
partial reflection	Narrow Band	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 beamsplitter are available upon request.
partial reflection	Broadband	Provide 50% reflection and transmission over a wide bandwidth. CASIX also provides coating with different R/T ratios and specific angles of incidence.
beamsplitter	Laser Line Polarizing Beamsplitters	High reflection for s-polarized and reflection for p-polarized for laser applications.
	Broadband Polarizing Beamsplitters	Wide wavelength bandwidths provide high reflection to s-polarized and antireflection to p-polarized.
	Dichroic Beamsplitter Mirrors	These coatings separate the laser fundamental and the pump wavelength or the fundamental and the second harmonic. They are specifically applied to laser mirrors.
dpss lasers	Diode Pumped Laser Optics Coatings (DPO)	These coatings are designed for a diode pumped laser. They can be deposited on a variety of substrates and have a high damage threshold.
high reflection	Dioeletric High Reflective Coatings	Provide high reflectance over a broad bandwidth and are ideal for tunable laser or white light applications.
high reflection	Metallic High Reflective Coatings	Metallic coating 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.