Search results for invisibility cloaks

Molecular & Computational biology Feb 05, 2020

The invisibility cloak of a fungus

While viruses and bacteria regularly manage to infect the human organism, fungi only very rarely succeed. The reason for this is that the human immune system can recognize them very easily because their cells are surrounded ...

General Physics Feb 03, 2020

Scientists discover hidden symmetries, opening new avenues for material design

When you knock on a melon to see if it's ripe, you are using sound waves to probe the structure of the material inside. Physicists at the University of Chicago were using the same concept to explore how sound waves travel ...

Optics & Photonics Jan 07, 2014

Inverse design: New route to design a practical invisibility cloak

With the emergence of metamaterials and transformation optics in the past few years, invisibility has become a scientific possibility that has attracted sustainable research interest. Recently, a review paper, entitled "Invisibility ...

General Physics Jun 24, 2010

Researchers design more reliable invisibility cloak

(PhysOrg.com) -- Researchers have proposed a new design for an invisibility cloak - a device that could make objects invisible by guiding light around anything placed inside the cloak.

General Physics Jan 28, 2016

Fast-moving invisibility cloaks become visible

(Phys.org)—Physicists have found that invisibility cloaks that can achieve perfect invisibility when not in motion will become visible when moving at speeds of around thousands of meters per second. This is because invisibility ...

Optics & Photonics May 18, 2011

Karlsruhe invisibility cloak: Disappearing visibly

"Seeing something invisible with your own eyes is an exciting experience," say Joachim Fischer and Tolga Ergin. For about one year, both physicists and members of the team of Professor Martin Wegener at KIT's Center for Functional ...

Optics & Photonics Aug 30, 2016

Invisibility cloak with photonic crystals

Almost as elusive as unicorns, finding practical materials for invisibility cloaking is challenging. Michigan Technological University researchers have new ideas how to solve that.

General Physics May 24, 2012

Thousands of invisibility cloaks trap a rainbow

Many people anticipating the creation of an invisibility cloak might be surprised to learn that a group of American researchers has created 25 000 individual cloaks.

General Physics Jun 06, 2014

Researchers build optical invisibility cloak for a diffusive medium

Real invisibility cloaks are rather complex and work in certain situations only. The laws of physics prevent an optical invisibility cloak from making objects in air invisible for any directions, colors, and polarizations. ...

General Physics Mar 18, 2010

Researchers create 3-D invisibility cloak: study

European researchers have taken the world a step closer to fictional wizard Harry Potter's invisibility cape after they made an object disappear using a three-dimensional "cloak", a study published Thursday in the US-based ...

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