title: Plasmonic Waveguide-Integrated Nanowire Laser.
abstract: Next-generation optoelectronic devices and photonic circuitry will have to incorporate on-chip compatible nanolaser sources. Semiconductor nanowire lasers have emerged as strong candidates for integrated systems with applications ranging from ultrasensitive sensing to data communication technologies. Despite significant advances in their fundamental aspects, the integration within scalable photonic circuitry remains challenging. Here we report on the realization of hybrid photonic devices consisting of nanowire lasers integrated with wafer-scale lithographically designed V-groove plasmonic waveguides. We present experimental evidence of the lasing emission and coupling into the propagating modes of the V-grooves, enabling on-chip routing of coherent and subdiffraction confined light with room-temperature operation. Theoretical considerations suggest that the observed lasing is enabled by a waveguide hybrid photonic-plasmonic mode. This work represents a major advance toward the realization of application-oriented photonic circuits with integrated nanolaser sources.
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels Barcelona, Spain.
authors.forename: Esteban
authors.identifier: 0000-0002-8964-9660
authors.initials: E
authors.lastname: Bermúdez-Ureña
authors.affiliation: Laboratoire des Matériaux Semiconducteurs, École Polytechnique Fédérale de Lausanne , 1015 Lausanne, Switzerland.
authors.forename: Gozde
authors.initials: G
authors.lastname: Tutuncuoglu
authors.affiliation: Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid , 28049 Madrid, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Cuerda
authors.affiliation: Department of Micro- and Nanotechnology, Technical University of Denmark , DK-2800, Kongens Lyngby, Denmark.
authors.forename: Cameron L C
authors.identifier: 0000-0002-4048-827X
authors.initials: CL
authors.lastname: Smith
authors.affiliation: Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid , 28049 Madrid, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Bravo-Abad
authors.affiliation: Centre for Nano Optics, University of Southern Denmark , Campusvej 55, DK-5230 Odense M, Denmark.
authors.forename: Sergey I
authors.initials: SI
authors.lastname: Bozhevolnyi
authors.affiliation: Laboratoire des Matériaux Semiconducteurs, École Polytechnique Fédérale de Lausanne , 1015 Lausanne, Switzerland.
authors.forename: Anna
authors.initials: A
authors.lastname: Fontcuberta I Morral
authors.affiliation: Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid , 28049 Madrid, Spain.|Donostia International Physics Center (DIPC) , E-20018 Donostia/San Sebastian, Spain.
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: García-Vidal
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels Barcelona, Spain.|ICREA-Institució Catalana de Recerca i Estudis Avançats , 08010 Barcelona, Spain.
authors.forename: Romain
authors.identifier: 0000-0001-8995-8976
authors.initials: R
authors.lastname: Quidant
keywords: Nanowire lasers; hybrid devices; photonic circuitry; plasmonic waveguides; semiconductor nanowires