In Nature Photonics on Monday, a paper was published in which the authors claimed to have experimentally demonstrated a cloaking device that was effective at optical frequencies. I was excited; unfortunately, I was also busy, so I only managed to read the whole paper today. So, belatedly, I bring you the latest in cloaking research.
The research, performed at Cornell, makes use of transformation optics, which we have discussed before, but it is not cloaking as your local Star Trek fan club knows it. On the other hand, what the researchers are selling as cloaking could find a whole range of applications that don't involve invisibility at all.
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