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

Organic Salt Displays Laserlike Emission

Photonics Spectra
Oct 2001
Researchers have ascribed the laserlike emission from organic dye molecules and conjugated polymers to mechanisms such as cooperative emission, amplified spontaneous emission and the formation of local cavities. A team at Auburn University in Alabama has reported a conversion efficiency of up to 40 percent in the organic molecular salt styrylpyridinium cyanine dye, which it attributes to cooperative emission.

The research team pumped the salt with 55-ps pulses from a frequency-doubled Nd:YAG laser. The threshold pump energy was less than 1 µJ, and the sample yielded a photoluminescence spectrum with a center at 620 nm. A report of the work appeared in the Aug. 6 issue of Applied Physics Letters.


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!