Chen Guang-Yin, Chen Yueh-Nan, Chuu Der-San
Institute of Physics, National Chiao Tung University, Hsinchu, Taiwan.
Opt Lett. 2008 Oct 1;33(19):2212-4. doi: 10.1364/ol.33.002212.
The spontaneous emission (SE) of quantum dot (QD) excitons into surface plasmons in a cylindrical nanowire is investigated theoretically. Maxwell's equations with appropriate boundary conditions are solved numerically to obtain the dispersion relations of surface plasmons. The SE rate of QD excitons is found to be greatly enhanced at certain values of the exciton bandgap. Application in generation of remote entangled states via superradiance is also pointed out and may be observable with current technology.
从理论上研究了量子点（QD）激子在圆柱形纳米线中向表面等离子体激元的自发发射（SE）。通过数值求解具有适当边界条件的麦克斯韦方程组，以获得表面等离子体激元的色散关系。发现在激子带隙的某些值处，量子点激子的自发发射速率会大大提高。文中还指出了其在通过超辐射产生远程纠缠态方面的应用，并且利用当前技术可能可以观测到。
