Department of Physics

Nanoparticles: Improving Optical Emission

Dr. Sergey Mirov, This email address is being protected from spambots. You need JavaScript enabled to view it. , 934-8088

Semiconductor lasers feature narrow amplification bandwidth which limits their application in spectroscopy. We are trying to solve this problem by making them lase on the impurity transitions rather than on transitions between the conduction and valence bands. We propose electrically pumped Cr and Fe doped ZnSe quantum dot broadly tunable middle-infrared lasers.
research_mirov_01 research_mirov_02
Nano-dot Heterojunction laser Cr nanoparticles imbedded in ZnSe nano-dot active region effectively convert energy accumulated  by carriers in nano-dots into middle-infrared laser radiation