Materials get their optical properties based on how much they reflect, absorb or transmit different wavelengths (colors) of light. Usually optical coatings either reflect or transmit a given color of ...

For example, the coatings on tinted eyeglasses reflect, or "block out," harmful blue light and ultraviolet rays. But until now, no optical coating had ever been developed that could simultaneously ...

Anti-Reflection (AR) coatings represent a key innovation in optics. AR coatings are central to the proper manipulation of light, mitigating Fresnel reflection, enhancing system throughput and ...

Engineers at the University of California, Berkeley, have created mirrors that pack the same 99.9% reflectivity as current distributed Bragg reflector (DBR) mirrors, but do so in packages 20 times ...

Many optical systems include mirrors as a component. They are used to direct and focus light, combine wavelengths, and reject specific wavelengths in imaging and a host of other applications. Multiple ...

We performed a unique Venus observation campaign to measure the disk brightness of Venus over a broad range of wavelengths in August and September 2020. The primary goal of the campaign is to ...

Plastic fibres that can be tuned to reflect only particular wavelengths of light could be used to “watermark” anything from designer clothing to passports. The fibres are made by evaporating an ...

In the “Beyond EUV” project, the Fraunhofer Institutes for Laser Technology ILT in Aachen and for Applied Optics and Precision Engineering IOF in Jena are together developing photonics-based ...