title: Atomic Response in the Near-Field of Nanostructured Plasmonic Metamaterial.
abstract: We report on reflection spectra of cesium atoms in close vicinity of a nanostructured metallic meta-surface. We show that the hyperfine sub-Doppler spectrum of the 6(2)S1/2-6(2)P3/2 resonance transition at 852 nm is strongly affected by the coupling to the plasmonic resonance of the nanostructure. Fine tuning of dispersion and positions of the atomic lines in the near-field of plasmonic metamaterials could have uses and implications for atom-based metrology, sensing, and the development of atom-on-a-chip devices.
authors.affiliation: Centre for Disruptive Photonic Technologies, TPI, Nanyang Technological University , 637371, Singapore.
authors.forename: Syed Abdullah
authors.initials: SA
authors.lastname: Aljunid
authors.affiliation: Centre for Disruptive Photonic Technologies, TPI, Nanyang Technological University , 637371, Singapore.
authors.forename: Eng Aik
authors.initials: EA
authors.lastname: Chan
authors.affiliation: Centre for Disruptive Photonic Technologies, TPI, Nanyang Technological University , 637371, Singapore.
authors.forename: Giorgio
authors.initials: G
authors.lastname: Adamo
authors.affiliation: Centre for Disruptive Photonic Technologies, TPI, Nanyang Technological University , 637371, Singapore.|Laboratoire de Physique des Lasers, Université Paris 13, CNRS, (UMR 7538) , F-93430, Villetaneuse, France.|School of Physical and Mathematical Sciences, Nanyang Technological University , 637371 Singapore.
authors.forename: Martial
authors.initials: M
authors.lastname: Ducloy
authors.affiliation: Centre for Disruptive Photonic Technologies, TPI, Nanyang Technological University , 637371, Singapore.|School of Physical and Mathematical Sciences, Nanyang Technological University , 637371 Singapore.|Centre for Quantum Technologies, National University of Singapore , 117543 Singapore.|MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit UMI 3654 , Singapore.
authors.forename: David
authors.initials: D
authors.lastname: Wilkowski
authors.affiliation: Centre for Disruptive Photonic Technologies, TPI, Nanyang Technological University , 637371, Singapore.|Optoelectronics Research Centre and Centre for Photonic Metamaterials, University of Southampton , Southampton SO17 1BJ, United Kingdom.
authors.forename: Nikolay I
authors.initials: NI
authors.lastname: Zheludev
keywords: Fano system; Metamaterial; atomic spectroscopy; hybrid device; plasmonic resonance