3D printed multilayer structures for high-numerical aperture achromatic lenses
Flat optics are made of nanostructures containing high-refractive index materials to produce lenses with thin form factors that function only at specific wavelengths.
News tagged with flat optics
Meta-lens offers superior off-axis focus
An ultrathin dielectric meta-lens has been created that improves focusing capabilities but can also be scaled down to a tiny size for integration with photonics equipment.
Optics & Photonics
Oct 24, 2022
0
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Scientists twirl liquid light into time-periodic cluster
Researchers from Skoltech, the University of Iceland, and the University of Southampton have demonstrated the formation of an odd never-before-seen entity from the realm of quantum physics: a cluster of optical vortices with ...
Optics & Photonics
Aug 10, 2022
0
63
New algorithm approach paves the way for larger, more complex metalenses
Compact and lightweight metasurfaces—which use specifically designed and patterned nanostructures on a flat surface to focus, shape and control light—are a promising technology for wearable applications, especially virtual ...
Optics & Photonics
May 17, 2022
0
196
Beam steering angle expander with two liquid crystal polymeric diffractive optical elements
Scientists have developed a high-efficiency beam steering angle expander consisting of two liquid crystal polymeric diffractive optical elements. For a LiDAR (light detection and ranging) operating at 905 nm, the steering ...
Optics & Photonics
Jul 1, 2021
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3
Team demos breakthrough in analog image processing
A research team of Vanderbilt engineers that includes a scientist at Oak Ridge National Laboratory has demonstrated a new ultrathin filter, based on metamaterials, that allows for analog optical image processing. Their work, ...
Optics & Photonics
Feb 25, 2020
0
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Laser writing enables practical flat optics and data storage in glass
Femtosecond laser machining has emerged as an attractive technology enabling applications ranging from eye surgery to direct writing on the bulk of transparent materials. Scientists from the University of Southampton, UK, ...
Optics & Photonics
Feb 20, 2020
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22
1 + 1 does not equal 2 for graphene-like 2-D materials
Physicists from the University of Sheffield have discovered that when two atomically thin graphene-like materials are placed on top of each other their properties change, and a material with novel hybrid properties emerges, ...
Nanomaterials
Mar 6, 2019
0
498
No need for color correction: Perfect colors, captured with one ultra-thin lens
Most lenses are, by definition, curved. After all, they are named for their resemblance to lentils, and a glass lens made flat is just a window with no special powers. But a new type of lens created at the Harvard School ...
Optics & Photonics
Feb 19, 2015
2
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Engineers pioneer flat spray-on optical lens
A team of researchers, including a University of British Columbia engineer have made a breakthrough utilizing spray-on technology that could revolutionize the way optical lenses are made and used.
General Physics
May 23, 2013
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