title: Metamaterials enable chiral-selective enhancement of two-photon luminescence from quantum emitters.
abstract: 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.
authors.affiliation: 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.
authors.forename: Sean P
authors.initials: SP
authors.lastname: Rodrigues
authors.forename: Yonghao
authors.initials: Y
authors.lastname: Cui
authors.forename: Shoufeng
authors.initials: S
authors.lastname: Lan
authors.forename: Lei
authors.initials: L
authors.lastname: Kang
authors.forename: Wenshan
authors.initials: W
authors.lastname: Cai
keywords: chirality; metamaterials; nanophotonics; nonlinear optics; quantum dots