论文标题
基于等离子体增强的发射到纳米纤维引导模式的明亮和极化的纤维内部光子源
Bright and polarized fiber in-line single photon source based on plasmon-enhanced emission into nanofiber guided modes
论文作者
论文摘要
我们证明了基于等离子体胶体单量子点的等离子增强发射到光学纳米纤维中的明亮和极化的纤维在线单光子源。我们表明，在存在单个金纳米棒的情况下，可以强烈增强单个量子点的发射特性，从而导致明亮且极偏振的单个光子发射。单个光子有效地耦合到纳米纤维的引导模式，并最终与单个模式光纤。单个光子源的亮度（纤维耦合的光子计数速率）估计为12.2（0.6）MHz，具有高单个光子纯度（G2（0）= 0.20（0.04））和高度高达94-97％的亮度。目前的设备可以集成到量子网络中潜在应用的方式铺平道路上。
We demonstrate a bright and polarized fiber in-line single photon source based on plasmon-enhanced emission of colloidal single quantum dots into an optical nanofiber. We show that emission properties of single quantum dots can be strongly enhanced in the presence of single gold nanorods leading to a bright and strongly polarized single photon emission. The single photons are efficiently coupled to guided modes of the nanofiber and eventually to a single mode optical fiber. The brightness (fiber-coupled photon count rate) of the single photon source is estimated to be 12.2(0.6) MHz, with high single photon purity (g2(0) = 0.20(0.04)) and degree of polarization as high as 94-97%. The present device can be integrated into fiber networks paving the way for potential applications in quantum networks.
