Author Affiliations

Ilka Kriegel,^a,b,⊥,* Andreas Wisnet,^d Ajay Ram Srimath Kandada,^e Francesco Scotognella,^c,e Francesco Tassone,^e Christina Scheu,^d Hui Zhang,^f Alexander O. Govorov,^f Jessica Rodríguez-Fernández,^a,b and Jochen Feldmann^a,b

^aPhotonics and Optoelectronics Group, Department of Physics and CeNS, Ludwig-Maximilians-Universität München, Munich, Germany.

^bNanosystems Initiative Munich (NIM), Munich, Germany

^cDipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy

^dDepartment of Chemistry and CeNS, Ludwig-Maximilians-Universität München, Munich, Germany

^eCNST of IIT@POLIMI, Via Pascoli 70/3, 20133 Milano, Italy

^fDepartment of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA

^⊥Current address: Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy

^*Corresponding author: ilka.kriegel@polimi.it