Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
share
Email Facebook Twitter Google+ LinkedIn Comments

Cerenkov Radiation Modeled in Photonic Crystals

Photonics Spectra
Mar 2003
resCerenkov1.jpgResearchers at Massachusetts Institute of Technology in Cambridge have simulated the emission of Cerenkov radiation by a moving charged particle in a two-dimensional photonic crystal. Based on their findings, which appear in the Jan. 17 issue of Science, they propose that the phenomenon may lead to more sensitive particle detectors and to the development of unique sources of radiation.

According to their models, the relationship of the charge velocity to the speed of light in a periodic structure produces four distinct types of Cerenkov radiation, including a backward-pointed, reversed radiation cone unique to photonic crystals. They calculate that the emissions should be observable, opening the door to alternatives to scintillation counters and cloud chambers.


GLOSSARY
cerenkov radiation
The radiation produced when a charged particle traverses a medium that has a refractive index considerably greater than unity. The moving particle has a velocity that exceeds the velocity of light in the medium, thus producing the radiation.
Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!