Print Email Facebook Twitter Normal-Mode Splitting in a Weakly Coupled Optomechanical System Title Normal-Mode Splitting in a Weakly Coupled Optomechanical System Author Rossi, Massimiliano (University of Camerino) Kralj, Nenad (University of Camerino) Zippilli, Stefano (University of Camerino; Istituto Nazionale di Fisica Nucleare - Sezione di Perugia) Natali, Riccardo (University of Camerino; Istituto Nazionale di Fisica Nucleare - Sezione di Perugia) Borrielli, Antonio (Institute of Materials for Electronics and Magnetism, Nanoscience-Trento-FBK Division) Pandraud, G. (TU Delft Else Kooi Laboratory; TU Delft EKL Processing) Serra, E. (TU Delft Electronic Components, Technology and Materials; TU Delft Else Kooi Laboratory; Trento Institute for Fundamental Physics and Application) Di Giuseppe, Giovanni (University of Camerino; Istituto Nazionale di Fisica Nucleare - Sezione di Perugia) Vitali, David (University of Camerino; Istituto Nazionale di Fisica Nucleare - Sezione di Perugia; CNR-INO) Department Else Kooi Laboratory Date 2018 Abstract Normal-mode splitting is the most evident signature of strong coupling between two interacting subsystems. It occurs when two subsystems exchange energy between themselves faster than they dissipate it to the environment. Here we experimentally show that a weakly coupled optomechanical system at room temperature can manifest normal-mode splitting when the pump field fluctuations are antisquashed by a phase-sensitive feedback loop operating close to its instability threshold. Under these conditions the optical cavity exhibits an effectively reduced decay rate, so that the system is effectively promoted to the strong coupling regime. To reference this document use: http://resolver.tudelft.nl/uuid:e745231b-74d3-4aac-b4cc-5481df4a95c1 DOI https://doi.org/10.1103/PhysRevLett.120.073601 ISSN 0031-9007 Source Physical Review Letters, 120 (7), 1-5 Part of collection Institutional Repository Document type journal article Rights © 2018 Massimiliano Rossi, Nenad Kralj, Stefano Zippilli, Riccardo Natali, Antonio Borrielli, G. Pandraud, E. Serra, Giovanni Di Giuseppe, David Vitali Files PDF 44903552_PhysRevLett.120.073601.pdf 830.23 KB Close viewer /islandora/object/uuid:e745231b-74d3-4aac-b4cc-5481df4a95c1/datastream/OBJ/view