Metamaterials have extraordinary properties when it comes to diverting and controlling waves, especially sound and light: for instance, they can make an object invisible, or increase the resolving power of a lens. Now, researchers ...
Condensed Matter
Dec 23, 2014
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0
In the 1950s, the field of electronics began to change when the transistor replaced vacuum tubes in computers. The change, which entailed replacing large and slow components with small and fast ones, was a catalyst for the ...
Optics & Photonics
Jan 30, 2020
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70
Researchers at the Harvard School of Engineering and Applied Sciences have demonstrated a drastically new way of achieving negative refraction in a metamaterial. The advance, reported in the Aug. 2 issue of Nature, results ...
Condensed Matter
Aug 1, 2012
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(Phys.org) -- Inexpensive, portable devices that can rapidly screen cells for leukemia or HIV may soon be possible thanks to a chip that can produce three-dimensional focusing of a stream of cells, according to researchers.
Analytical Chemistry
May 30, 2012
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0
Researchers at MIT and several other institutions have developed a method for making photonic devices—similar to electronic devices but based on light rather than electricity—that can bend and stretch without damage. ...
Optics & Photonics
Nov 8, 2017
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352
Biomedical engineers at Duke University have devised a method for increasing the resolution of optical coherence tomography (OCT) down to a single micrometer in all directions, even in a living patient. The new technique, ...
Optics & Photonics
Aug 27, 2019
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58
(PhysOrg.com) -- Like tiny Jedi knights, tunable fluidic micro lenses can focus and direct light at will to count cells, evaluate molecules or create on-chip optical tweezers, according to a team of Penn State engineers. ...
General Physics
May 11, 2009
1
0
Astrophysics deals mostly with things that are so distant -- thousands or billions of light years away -- that we can't ever hope to see them up close. But clever scientists can do the next best thing to making a light-year ...
General Physics
Sep 30, 2010
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Engineers at the University of California San Diego have developed the thinnest optical device in the world—a waveguide that is three layers of atoms thin.
Optics & Photonics
Aug 12, 2019
2
646
A film just 250 nanometers or 0.00025 mm thick has given scientists a sneak peek into the ultrafast world.
Nanophysics
Jun 28, 2022
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