Category Technology/Electronics

New Holographic Camera sees the Unseen with High Precision

holographic camera
A setup of one of the prototypes in the laboratory

Device can see around corners and through scattering media like fog and human tissue. Northwestern University researchers have invented a new high-resolution camera that can see the unseen — including around corners and through scattering media, such as skin, fog or potentially even the human skull.

Called synthetic wavelength holography, the new method works by indirectly scattering coherent light onto hidden objects, which then scatters again and travels back to a camera. From there, an algorithm reconstructs the scattered light signal to reveal the hidden objects...

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A Nanoantenna for Long-Distance, Ultra-Secure Communication

 Conceptual illustration of efficient illumination of photons to semiconductor lateral quantum dots, by using a surface plasmon antenna and excitation of electrons in the quantum dots. (credit: copyright @ 2021 Oiwa lab. All Rights Reserved)

Researchers have improved the transfer efficiency between quantum information carriers, in a manner that’s based on well-established nanoscience and is compatible with upcoming advanced communication technologies.

Information storage and transfer in the manner of simple ones and zeros — as in today’s classical computer technologies — is insufficient for quantum technologies under development. Now, researchers from Japan have fabricated a nanoantenna that will help bring quantum information networks closer to practical use.

In a study recently...

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Innovative Fabric enables Digital Communication between Wearers, Nearby Devices

Innovative fabric enables digital communication between wearers, nearby devices
Assistant Professor Electrical Engineering and Computer Science Peter Tseng and Amir Hossein Haji Aghajani Memar Doctoral Student. Credit: Steve Zylius/UCI

Imagine your car starting the moment you get in because it recognizes the jacket you’re wearing. Consider the value of a hospital gown that continuously measures and transmits a patient’s vital signs. These are just two applications made possible by a new “body area network”-enabling fabric invented by engineers at the University of California, Irvine.

In a paper published recently in Nature Electronics, researchers in UCI’s Henry Samueli School of Engineering detail how they integrated advanced metamaterials into flexible textiles to create a system capable of battery-free communication between articles of clothing and nearby de...

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Tiny Chip provides a Big Boost in Precision Optics

Closeup of tweezers grasping tiny chip.
A 2 mm by 2 mm integrated photonic chip developed by Jaime Cardenas, assistant professor of optics, and PhD student Meiting Song (lead author) will make interferometers—and therefore precision optics—even more powerful. Potential applications include more sensitive devices for measuring tiny flaws on mirrors, or dispersion of pollutants in the atmosphere, and ultimately, quantum applications. (University of Rochester photo / J. Adam Fenster)

By merging two or more sources of light, interferometers create interference patterns that can provide remarkably detailed information about everything they illuminate, from a tiny flaw on a mirror, to the dispersion of pollutants in the atmosphere, to gravitational patterns in far reaches of the Universe.

“If you want to measure something w...

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