Optical Coating - Simphoton Optronics

Optical Coating

Simphoton can provide a wide variety of coatings from simple single layer AR coatings using Mg F2 and mirror coatings to complex multilayer dielectric stacks. Typical types of dielectric coatings are BBAR, V-coatings, Dual wavelength AR coatings and HR coatings. Sharp cut-on and cut-off filters are also available. Please contact us, if our standard coatings described in this chapter can not meet your requirements. Our engineers can design a special coating for you.

Coating Type	Properties and Application
UV AR	With coating technology improments, Simphoton can provide the super UV Antireflection coating. It has extemly low avsorption at UV wavelength. For example, absorption is less than 0.5%@266nm.
Single layer MgF2 AR	Applied to materials with refractive indices from 1.45 to 2.4. The most popular antireflection coating for visible. They are insensitive to change in incidence angles.
Multilayer VAR	Used to provide low reflectance with in a narrow durable wavelength band for most laser application. Minimum reflection can be less than 0.1%
Broadband BBAR	These coatings have excellent performance over a broad spectral range broadband. Coating performance is sensitive to angle of incidence.
Dual Band AR	Offer very low reflectance at two widely spaced wavelengths, such as Nd:YAG Laser (1064) and its second harmonic (532) . Simphoton makes this a double wavelength waveplate.
Narrow band Partial Reflection Beamsplitter	Provide 50% reflection and transmission at an angle of 45deg. incidence for a single wavelength. Perfect for beamsplitters application. Transmission/reflection (T/R) ratio of 20/80, or others for Beamsplitter is available upon request.
Broad band Partial Reflection Beamsplitter	Over a wide bandwidth provides 50% reflection and transmission. Simphoton can also provide coatings with different R/T ratios at and specific angle of incident.
Polarization Beamsplitter	High reflection for s-polarized and antireflection for p-polarized for laser application.
Dielectric High Reflection	Provide high reflectance over a broad bandwidth, and is ideal for a tunable laser or in white light applications.
Dichroic Mirror	These coatings can separate the laser fundamental and the pump wavelength, or the fundamental and the second harmonic. They are specific applied to laser mirror.
Long wave pass (LWP) Filter	The coating allow the long wavelenth pass and cut off (reflection) the short wavelength.
Short wave pass (SWP) Filter	The coating allow the short wavelenth pass and cut off (reflection) the long wavelength.
Bandpass Filter	The coating allow the specified wavelength bandwith pass and cut off the other wavelength.
Metalic Aluminum(AL)	UV enhanced Aluminum with MgF2 or protective Al+SiO2.
Metalic Silver (Ag)	Protective Ag+SiO2 or bare silver coating.
Metalic Gold (Au)	Bare gold (Au) coating

E-mail for RFQ: sales@simphoton.com