title: Exciting Polaritons with Quantum Light.
abstract: We discuss the excitation of polaritons-strongly coupled states of light and matter-by quantum light, instead of the usual laser or thermal excitation. As one illustration of the new horizons thus opened, we introduce "Mollow spectroscopy"-a theoretical concept for a spectroscopic technique that consists of scanning the output of resonance fluorescence onto an optical target-from which weak nonlinearities can be read with high precision even in strongly dissipative environments.
authors.affiliation: Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
authors.forename: J C
authors.initials: JC
authors.lastname: López Carreño
authors.affiliation: Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Sánchez Muñoz
authors.affiliation: CNR NANOTEC-Institute of Nanotechnology, Via Monteroni, 73100 Lecce, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Sanvitto
authors.affiliation: Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
authors.forename: E
authors.initials: E
authors.lastname: del Valle
authors.affiliation: Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain.|Russian Quantum Center, Novaya 100, 143025 Skolkovo, Moscow Region, Russia.
authors.forename: F P
authors.initials: FP
authors.lastname: Laussy