High Purcell Factor Due To Coupling of a Single Emitter to a Dielectric Slot Waveguide

作者：Kolchin Pavel; Pholchai Nitipat; Mikkelsen Maiken H; Oh Jinyong; Ota Sadao; Islam M Saif; Yin Xiaobo; Zhang Xiang^*

来源：Nano Letters, 2015, 15(1): 464-468.

DOI：10.1021/nl5037808

• Nanophotonics quantum dot
• field enhancement
• emission coupling
• all-dielectric waveguide
• deep subwavelength light confinement
• waveguide QED

We demonstrate an all-dielectric quantum electrodynamical nanowire-slab system with a single emitter that concentrates the extremely intense light at the scale of 10 x 75 nm(2). The quantum dot exhibits a record high 31-fold spontaneous decay rate enhancement, its optical saturation and blinking are strongly suppressed, and 80% of emission couples into a waveguide mode.

• 出版日期2015-1