Comparative analysis of photoluminescence and Raman enhancement by metal nanoparticles |
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| Authors: | Sun Greg Khurgin Jacob B Tsai Din Ping |
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| Institution: | Department of Physics, University of Massachusetts-Boston, Boston, Massachusetts 02125, USA. greg.sun@umb.edu |
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| Abstract: | We present a comparative study on the enhancement of photoluminescence and Raman processes by a single metal nanoparticle. Taking an analytical approach, we show the physics behind strikingly different orders of magnitude in enhancement that have been observed, provide fundamental explanation for not observing quenching of Raman processes, and outline the path to optimization of both photoluminescence and Raman enhancement. |
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