School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
Adv Mater. 2015 Feb;27(6):1124-30. doi: 10.1002/adma.201405072. Epub 2014 Dec 23.
The amplification of chirally modified, non-linear signals from quantum emitters is demonstrated by manipulating the geometric chirality of resonant plasmonic nanostructures. The chiral center of the metamaterial is opened and emitters occupy this light-confining and chirally sensitive region. Non-linear emission signals are enhanced by 40× that of the emitters not embedded in the metamaterial and display a 3× contrast for the opposite circular polarization.
通过操控共振等离子体纳米结构的几何手性，展示了手性修饰的非线性信号的放大。超材料的手性中心被打开，而量子发射器占据了这个限制光传播和手性敏感的区域。与未嵌入超材料的发射器相比，非线性发射信号增强了 40 倍，而对于相反的圆偏振光，对比度则提高了 3 倍。
