Search results for invisibility cloaks

Condensed Matter Apr 27, 2022

Zero-index metamaterials offer new insights into the foundations of quantum mechanics

In physics, as in life, it's always good to look at things from different perspectives.

Quantum Physics Apr 26, 2022

Physicists embark on a hunt for a long-sought quantum glow

For "Star Wars" fans, the streaking stars seen from the cockpit of the Millennium Falcon as it jumps to hyperspace is a canonical image. But what would a pilot actually see if she could accelerate in an instant through the ...

Quantum Physics Apr 8, 2022

Invisible helium atoms provide exquisitely sensitive test of fundamental theory

Physicists at the Australian National University have developed the most sensitive method ever for measuring the potential energy of an atom (within a hundredth of a decillionth of a jouleā€”or 10-35 joule), and used it to ...

Materials Science Jan 23, 2022

Solving a crystal's structure when you've only got powder

Crystals reveal the hidden geometry of molecules to the naked eye. Scientists use crystals to figure out the atomic structure of new materials, but many can't be grown large enough. Now, a team of researchers report a new ...

Optics & Photonics Jan 7, 2022

Making an object invisible under fluid flow

The invisibility cloak is an artifact that can make the wearer transparent, rendering it undetectable to observers outside. Perhaps, one of the most well-known examples is the invisibility cloak possessed by Harry Potter ...

Optics & Photonics Dec 21, 2021

Creating invisibility with superconducting materials

Invisibility devices may soon no longer be the stuff of science fiction. A new study published in the De Gruyter journal Nanophotonics by lead authors Huanyang Chen at Xiamen University, China, and Qiaoliang Bao, suggests ...

General Physics Sep 13, 2021

Using acoustics to conceal and simulate objects

When listening to music, we don't just hear the notes produced by the instruments, we are also immersed in its echoes from our surroundings. Sound waves bounce back off the walls and objects around us, forming a characteristic ...

Optics & Photonics Aug 10, 2021

Metamaterials research challenges fundamental limits in photonics

Cornell researchers are proposing a new way to modulate both the absorptive and the refractive qualities of metamaterials in real time, and their findings open intriguing new opportunities to control, in time and space, the ...

Optics & Photonics Jun 15, 2021

Bending light for safer driving; invisibility cloaks to come?

Optical cloaking allows objects to be hidden in plain sight or to become invisible by guiding light around anything placed inside the cloak. While cloaking has been popularized in fiction, like in the "Harry Potter" books, ...

General Physics May 12, 2021

How to thermally cloak an object

Can you feel the heat? To a thermal camera, which measures infrared radiation, the heat that we can feel is visible, like the heat of a traveler in an airport with a fever or the cold of a leaky window or door in the winter.

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