Center for Photonic Innovations, University of Electro-Communications, Chofu, Tokyo, Japan.
Phys Rev Lett. 2012 Aug 10;109(6):063602. doi: 10.1103/PhysRevLett.109.063602. Epub 2012 Aug 8.
We experimentally demonstrate the efficient channeling of fluorescence photons from single q dots on optical nanofiber into the guided modes by measuring the photon-count rates through the guided and radiation modes simultaneously. We obtain the maximum channeling efficiency to be 22.0(±4.8)% at a fiber diameter of 350 nm for the emission wavelength of 780 nm. The results may open new possibilities in quantum information technologies for generating single photons into single-mode optical fibers.
我们通过同时测量通过导模和辐射模的光子计数率，实验证明了单量子点上的荧光光子有效地从光纤中的光学纳米纤维中进入导模。我们在发射波长为 780nm 时，在光纤直径为 350nm 的情况下，获得了最大的导光效率为 22.0(±4.8)%。这些结果可能为将单光子引入单模光纤的量子信息技术开辟新的可能性。
