title: A multiband perfect absorber based on hyperbolic metamaterials.
abstract: In recent years, considerable research efforts have been focused on near-perfect and perfect light absorption using metamaterials spanning frequency ranges from microwaves to visible frequencies. This relatively young field is currently facing many challenges that hampers its possible practical applications. In this paper, we present grating coupled-hyperbolic metamaterials (GC-HMM) as multiband perfect absorber that can offer extremely high flexibility in engineering the properties of electromagnetic absorption. The fabricated GC-HMMs exhibit several highly desirable features for technological applications such as polarization independence, wide angle range, broad- and narrow- band modes, multiband perfect and near perfect absorption in the visible to near-IR and mid-IR spectral range. In addition, we report a direct application of the presented system as an absorption based plasmonic sensor with a record figure of merit for this class of sensors.
authors.affiliation: Department of Physics, Case Western Reserve University, 10600 Euclid Avenue, Cleveland, OH, 44106 (USA).
authors.forename: Kandammathe Valiyaveedu
authors.initials: KV
authors.lastname: Sreekanth
authors.affiliation: Department of Physics, Case Western Reserve University, 10600 Euclid Avenue, Cleveland, OH, 44106 (USA).
authors.forename: Mohamed
authors.initials: M
authors.lastname: ElKabbash
authors.affiliation: Case Biomanufacturing and Microfabrication Laboratory, Mechanical and Aerospace Engineering Department, Case Western Reserve University, Cleveland, OH, 44106 USA.
authors.forename: Yunus
authors.initials: Y
authors.lastname: Alapan
authors.affiliation: Department of Physics, Case Western Reserve University, 10600 Euclid Avenue, Cleveland, OH, 44106 (USA).
authors.forename: Alireza R
authors.initials: AR
authors.lastname: Rashed
authors.affiliation: Case Biomanufacturing and Microfabrication Laboratory, Mechanical and Aerospace Engineering Department, Case Western Reserve University, Cleveland, OH, 44106 USA.|Biomedical Engineering Department, Case Western Reserve University, Cleveland, OH, 44106 USA.|Department of Orthopaedics, Case Western Reserve University, Cleveland, OH, 44106 USA.|Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, 44106 USA.
authors.forename: Umut A
authors.initials: UA
authors.lastname: Gurkan
authors.affiliation: Department of Physics, Case Western Reserve University, 10600 Euclid Avenue, Cleveland, OH, 44106 (USA).|Department of Physics and CNR-NANOTEC UOS of Cosenza, Licryl Laboratory, University of Calabria, 87036 - Rende (Italy).
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Strangi