Optical communications, or photonics, technology has failed to match the miniaturization of electronic components, mainly because of fundamental laws of classical optics. The smallest photonic devices are limited to sizes ...
Optics & Photonics
Jan 30, 2013
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Optical coherence tomography (OCT) is a popular imaging modality for obtaining three-dimensional, micrometer-resolution pictures of structures that lie beneath the surface of, for example, the human eye or silicon wafers ...
Optics & Photonics
Jan 2, 2013
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A carbon-nanotube-coated lens that converts light to sound can focus high-pressure sound waves to finer points than ever before. The University of Michigan engineering researchers who developed the new therapeutic ultrasound ...
General Physics
Dec 19, 2012
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Optical fibers—the backbone of the Internet–carry movies, messages, and music at the speed of light. But for all their efficiency, these ultrathin strands of pristine glass must connect to sluggish signal switches, routers, ...
Optics & Photonics
Dec 19, 2012
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Toshiba America Electronic Components announced a new 13 mega pixel, 1.12 micrometer, CMOS image sensor delivering high-image quality equivalent to a 1.4 micrometer pixel image sensor. Toshiba implemented back side illumination ...
Electronics & Semiconductors
Nov 29, 2012
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A Japanese meteorology satellite captured the moving shadow from the total solar eclipse this week, and this animated series of images shows the shadow moving east-southeast across northeastern Australia and into the waters ...
Space Exploration
Nov 16, 2012
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(Phys.org)—Physics researchers working at Brandeis University have created a gel that is capable of spontaneous movement. In their paper published in the journal Nature, the team describes how they created gel drops by ...
Up to now, releasing components from molds has called for release agents. The problem is that the residues of these agents left behind must then be costly removed. Now, there is an alternative: a specially coated release ...
Engineering
Nov 1, 2012
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(Phys.org)—David Ruffner and David Grier of New York University have developed a technique for using Bessel beams to draw a particle toward a source. In their paper published in Physical Review Letters they describe how ...
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(Phys.org)—Makers of minuscule moving machines—the kind being eyed for nanomanufacturing and assembly as well as other uses—do you know where your micro- and nanorobots really are?
Nanophysics
Oct 17, 2012
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