Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Box 603-146, Beijing 100190, China.
Nano Lett. 2009 Dec;9(12):4168-71. doi: 10.1021/nl9023897.
We investigate the interaction between propagating surface plasmons in silver nanowires and excitons generated in quantum dots. We show propagating surface plasmons can excite excitons, which results in quantum dot emission. In this process, the energy is directly transferred from the propagating surface plasmons to the excitons without converting to photons. Furthermore, we demonstrate the reverse process where the decay of excitons generates surface plasmons.
我们研究了在银纳米线中传播的表面等离激元和量子点中产生的激子之间的相互作用。我们表明，传播的表面等离激元可以激发出激子，从而导致量子点发射。在这个过程中，能量直接从传播的表面等离激元转移到激子，而无需转换为光子。此外，我们还证明了相反的过程，即激子的衰减产生表面等离激元。
