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
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
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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
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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
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196
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
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Pinch, prod, pull on stretchy display by MIT creatives (w/ video)
(Phys.org) —What is an Obake? Two definitions have emerged; MIT inventors would enjoy close attention on the newer one. The older definition is that they are creatures in Japanese folklore that shift shapes. The second ...
Ultrathin wafer of silicon and gold focuses telecom wavelengths without distortion
(Phys.org)—August 23, 2012 – Applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have created an ultrathin, flat lens that focuses light without imparting the distortions of conventional ...
General Physics
Aug 24, 2012
7
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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
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14
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
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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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