Koenderink A Femius
Center for Nanophotonics, AMOLF, Science Park 104, NL-1098XG, Amsterdam, The Netherlands.
ACS Photonics. 2017 Apr 19;4(4):710-722. doi: 10.1021/acsphotonics.7b00061. Epub 2017 Mar 10.
Single-photon nanoantennas are broadband strongly scattering nanostructures placed in the near field of a single quantum emitter, with the goal to enhance the coupling between the emitter and far-field radiation channels. Recently, great strides have been made in the use of nanoantennas to realize fluorescence brightness enhancements, and Purcell enhancements, of several orders of magnitude. This perspective reviews the key figures of merit by which single-photon nanoantenna performance is quantified and the recent advances in measuring these metrics unambiguously. Next, this perspective discusses what the state of the art is in terms of fluoresent brightness enhancements, Purcell factors, and directivity control on the level of single photons. Finally, I discuss future challenges for single-photon nanoantennas.
单光子纳米天线是置于单个量子发射器近场中的宽带强散射纳米结构，其目标是增强发射器与远场辐射通道之间的耦合。最近，在利用纳米天线实现荧光亮度增强和珀塞尔增强几个数量级方面取得了巨大进展。本文综述了用于量化单光子纳米天线性能的关键品质因数，以及在明确测量这些指标方面的最新进展。接下来，本文讨论了在单光子水平上荧光亮度增强、珀塞尔因子和方向性控制方面的技术现状。最后，我讨论了单光子纳米天线未来面临的挑战。
