Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

Plasmon Transmission Retains Photon Entanglement

Photonics Spectra
Oct 2002
Entangled photons stay entangled, even after being converted to plasmons, according to the findings of researchers at Leiden University in the Netherlands. They used glass/gold arrays that, at holes in the gold interface (right), convert photons into surface plasmons, which are optically excited charge density waves. Plasmons on either side of the gold film couple to each other through the holes and are reradiated as photons at the far side. The researchers sent entangled photons through two arrays and measured the remaining entanglement with PerkinElmer single-photon-counting modules. As they reported in the July 18 issue of Nature, the fact that the photons stayed entangled leads them to believe that surface plasmons demonstrate a quantum nature on a macroscopic scale, which could be a valuable tool for developing many quantum technologies.

Research & Technology

Terms & Conditions Privacy Policy About Us Contact Us
back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2018 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.