Custom optical coatings | Customized thin films

23 Sep.,2024

 

Custom optical coatings | Customized thin films

Metallic and dielectric mirror coatings

Metallic and dielectric mirror coatings are mainly reflective and offer high imaging quality. They are based on all-dielectric or metallic layers like aluminum, enhanced aluminum, silver, enhanced silver, gold, chrome, copper, or platinum. Optical reflection, incidence, polarization, and other characteristics are adjusted to meet custom requirements. In addition to our standard mirror coatings, you can use our custom optics inquiry form to conveniently request a quotation for your customized mirror coating design.

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Beamsplitters and partially transmitting coatings

This kind of optical coating is used for the neutral splitting of light, laser radiation, or the defined damping of a light source. Beamsplitters can either have dielectric or metallic coating systems. The dividing ratio is adjusted to the customer's specification by modification of the layers. The backside can be anti-reflection coated to minimize unwanted secondary reflections and prevent energy loss. In case you can't work with our standard beamsplitter coatings, please use our custom thin-film coatings' inquiry form to conveniently receive a quotation for your customized beamsplitter design.

 

Single and multilayer anti-reflection coatings

These thin-film coatings minimize or eliminate unwanted reflections. Moreover, they can prevent ghost images or double laser beams from uncoated glass surfaces. The optical design is optimized for single wavelengths or a wide wavelength range (broadband AR coating) and for low surface reflection. The available transmitted light often increases by the same amount as the residual reflectance decreases.

Besides our anti-reflection coating standards, you have the opportunity to conveniently request a quotation for a custom coating by using our coating inquiry form.

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Cold mirrors and coatings for lighting applications

Cold mirrors are based on dielectric optical coatings with high reflection in the visible range and excellent transmittance in the infrared spectrum. A cold mirror is mainly used to efficiently filter out heat or IR radiation from a light beam or an optical system. The cut-on and cut-off wavelengths and the range of reflection can be shifted or modified according to the customer's specific requirements.

Besides our standard cold mirrors, you can use the coating inquiry form to get a price for your custom-designed cold-mirror optics conveniently.

 

Optical Mirrors

N-BK7 metallic coated mirror

1&#;What Metallic Coated types can Uni-Optics supply? Uni-Optics mainly offers four coating types, including: 1) UV Enhanced Aluminum : Ravg > 85% from 250nm to 400nm 2) Protected Aluminum: Ravg > 87% from 400nm to 800nm 3) Protected Silver: Ravg > 95% from 400nm to 20um 4) Protected Gold: Ravg > 98% from 650nm to 16um 2&#;What are the features of Metallic coated mirror? Metallic coated mirror have many key features below: Wide spectral range Not sensitive to the incidence angle and polarization state Low cost Non-durable Relatively low reflectance Low laser damage threshold 3&#;What UNI Optics can do for you? Common Specifications: Substrate Materials: N-BK7, Fused silica, Pyrex&#;Float glass Dimensional tolerance: +/-0.1mm Surface quality:  60-40 Parallelism:  3&#; Flatness: λ/4 per 25mm@633nm Bevel: Protective One surface: Polished and Metallic coating The other surface: Fine ground Note: Aluminum is the most widely used metal reflection film, from near UV to near IR, have high reflectivity, and with low cost. Silver has higher reflectivity in the visible and near infrared wavelength than the aluminum film, but the silver in the air will be rapid oxidation, color darkening, makes the film performance and firmness declined rapidly. Gold film has a good consistency with high reflectivity in the near, middle and far infrared range, can control the thermal radiation effectively, but it is relatively soft, easy bruising, and should be paid very close attention to clean, and the cost is very high.

Contact us to discuss your requirements of Custom Optical Mirrors. Our experienced sales team can help you identify the options that best suit your needs.