A group of scientists led by researchers from the California Institute of Technology has engineered a type of artificial optical material—a metamaterial—with a particular three-dimensional structure such that light exhibits ...
Optics & Photonics
Apr 22, 2010
10
0
Researchers have developed a new enhanced DNA imaging technique that can probe the structure of individual DNA strands at the nanoscale. Since DNA is at the root of many disease processes, the technique could help scientists ...
Nanophysics
Jun 17, 2016
0
2607
(PhysOrg.com) -- When trying to focus sound waves into as small an area as possible, scientists run into a fundamental limit called the diffraction limit. That is, when sound waves are focused into a region smaller than one ...
By combining purpose-built materials and neural networks, researchers at EPFL have shown that sound can be used in high-resolution imagery.
General Physics
Aug 10, 2020
1
325
The world's most advanced light microscopes allow us to see single molecules, proteins, viruses and other very small biological structures. But even the best microscopes have their limits.
Cell & Microbiology
May 26, 2016
0
983
Ever since Antonie van Leeuwenhoek discovered the world of bacteria through a microscope in the late seventeenth century, humans have tried to look deeper into the world of the infinitesimally small.
Optics & Photonics
Oct 18, 2023
0
231
(Phys.org)—In 2011, scientists from the Institute Langevin in Paris built an array of 49 empty coke cans that resonate when exposed to an acoustic wave, causing the cans to produce sound similar to the way blowing across ...
Until recently, it was widely believed among physicists that it was impossible to compress light below the so-called diffraction limit (see below), except when using metal nanoparticles, which unfortunately also absorb light. ...
Optics & Photonics
Oct 26, 2022
0
973
Light microscopy is the only way in which we can look inside a living cell, or living tissues, in three dimensions. An electron microscope only gives a two-dimensional view, and the organic sample would quickly burn up due ...
Analytical Chemistry
Aug 8, 2019
0
210
A superlens would let you see a virus in a drop of blood and open the door to better and cheaper electronics. It might, says Durdu Guney, make ultra-high-resolution microscopes as commonplace as cameras in our cell phones.
Optics & Photonics
Jan 9, 2012
4
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