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
13
Electron microscopy enables researchers to visualize tiny objects such as viruses, the fine structures of semiconductor devices, and even atoms arranged on a material surface. Focusing down the electron beam to the size of ...
Optics & Photonics
Apr 11, 2022
1
223
For the first time, researchers have created a metasurface lens that uses a piezoelectric thin film to change focal length when a small voltage is applied. Because it is extremely compact and lightweight, the new lens could ...
Optics & Photonics
Feb 17, 2022
0
84
Characterized by large aperture and long focal length, the reflective optical system has the advantages of small number of optical elements and simple optical structure. But the intrinsic aberration and the misalignment derived ...
Optics & Photonics
Jan 18, 2022
0
236
Researchers from Cornell University's School of Applied and Engineering Physics and Samsung's Advanced Institute of Technology have created a first-of-its-kind metalens—a metamaterial lens—that can be focused using voltage ...
Nanophysics
Jun 10, 2021
2
1002
The odd, wavy pattern that results from viewing certain phone or computer screens through polarized glasses has led researchers to take a step toward thinner, lighter-weight lenses. Called moiré, the pattern is made by laying ...
Optics & Photonics
Jan 4, 2021
0
174
A 3-D camera should be as easy to use as one found on a smartphone.
Optics & Photonics
Mar 25, 2020
0
96
A research team led by the University of California San Diego has developed a soft robotic lens whose movements are controlled by the eyes—blink twice and the lens zooms in and out; look left, right, up or down and the ...
Materials Science
Aug 5, 2019
1
96
A radically different type of X-ray space telescope has been designed by scientists in Sweden, using advanced optic techniques that were originally developed in medical imaging research.
Astronomy
Jun 18, 2019
0
161
MIT researchers have developed novel photography optics that capture images based on the timing of reflecting light inside the optics, instead of the traditional approach that relies on the arrangement of optical components. ...
Optics & Photonics
Aug 13, 2018
0
504
