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

Putting Photons on Hold Improves Processing

Photonics Spectra
Jul 1997
To store or process information encoded as light signals, it is often necessary to slow down strings of photons.
A group of scientists from the University of Munich has developed a semiconductor device that serves as a quantum well, which incorporates a thin film of indium gallium arsenide sandwiched between layers of gallium arsenide.
When photons enter the quantum well, they are temporarily converted into electrons. A pulsed acoustic wave sent into the well slows the electrons for a few microseconds. This technique could lead to advances in beam steering, multiplexing and demultiplexing of optical signals on a single chip.

CommunicationsResearch & TechnologyTech Pulse

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.