Document Type
Article
Publication Date
3-9-2009
Abstract
We develop a simple yet rigorous theory of the photoluminescence (PL) enhancement in the vicinity of metal nanoparticles. The enhancement takes place during both optical excitation and emission. The strong dependence on the nanoparticle size enables optimization for maximum PL efficiency. Using the example of InGaN quantum dots (QDs) positioned near Ag nanospheres embedded in GaN, we show that strong enhancement can be obtained only for those QDs, atoms, or molecules that are originally inefficient in absorbing as well as in emitting optical energy. We then discuss practical implications for sensor technology.
Recommended Citation
Sun, Greg; Khurgin, Jacob B.; and Soref, R. A., "Practical enhancement of photoluminescence by metal nanoparticles" (2009). Physics Faculty Publications. 15.
https://scholarworks.umb.edu/physics_faculty_pubs/15
Publisher
American Institute of Physics
Rights
Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Comments
The following article appeared in Applied Physics Letters, vol. 94, issue 10 (2009) and may be found at http://dx.doi.org/10.1063/1.3097025.
Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.