Optical gain from InAs nanocrystal quantum dots in a polymer matrix

• Published in: Applied physics letters Vol. 87; no. 25; pp. 251108 - 251108-3
• Main Authors: Chen, Gang, Rapaport, Ronen, Fuchs, Dan T., Lucas, Leah, Lovinger, Andrew J., Vilan, Sahar, Aharoni, Assaf, Banin, Uri
• Format: Journal Article
• Language: English
• Published: American Institute of Physics 19-12-2005
• ISSN: 0003-6951; 1077-3118
• DOI: 10.1063/1.2149176

We report on the observation of optical gain from InAs nanocrystal quantum dots which emit at
1.55
microns
and are imbedded in a novel polymer platform. The measurements are based on a three-beam time resolved pump-probe technique, which enables extracting the intrinsic gain cross section, lifetime, and recovery time. These experiments are another step toward the realization of active optical devices based on InAs nanocrystals.