Category Archives: Invisibility

Physics demonstrations: cloaking device?

I’ve spent a lot of time on this blog talking about the optics of invisibility, both hypothetical and actual.  Though a number of forms of invisibility have been considered in both science and fiction for over a hundred years, the … Continue reading

Posted in Invisibility, Optics, Physics demos | 7 Comments

Physics demonstrations: invisibility on the cheap!

I spend a lot of time talking about invisibility on this blog, and it really has become a fascinating and vibrant area of optics, with lots of remarkable results.  However, most of those results are theoretical, and the experimental results … Continue reading

Posted in Invisibility, Optics, Physics demos | 4 Comments

How to become invisible by “hiding under the carpet”

Since the first theoretical cloaking papers in 2006, the topic of optical invisibility has just gotten stranger and stranger.  There have been proposals of optical wormholes, perfect optical illusions, space-time cloaks, and more.  Perhaps even more surprising, however, is the … Continue reading

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Optical wormholes: punching virtual tunnels in space via metamaterials!

Though the introduction of optical invisibility cloaks in 2006 caused a huge sensation around the world in both the media and the general public, arguably even more significant to the optical science community is the technique used to design cloaks. … Continue reading

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Illusion optics: the physics of making things look like other things!

The idea of optical cloaking, or more generally the concept of invisibility, has gone from science fiction trope to serious topic of physics research to subfield of optical science in its own right in a remarkably short period of time. … Continue reading

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Invention of the “perfect” invisibility cloak?

In 2006, a number of researchers made international headlines with the announcement that they had laid the theoretical foundations for the construction of an “invisibility cloak,” a device that has been a staple of horror, fantasy and science fiction for … Continue reading

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What’s the difference between “transparency” and “invisibility”?

In writing my previous post on The Murderer Invisible, I started thinking again about the relationship between something being “transparent” and something being truly “invisible”. Most of us can appreciate that, under the right circumstances, a transparent object like a … Continue reading

Posted in Invisibility, Optics | 8 Comments