Now showing items 1-11 of 11

    • An analysis for the broad-band absorption enhancement using plasmonic structures on uncooled infrared detector pixels 

      Lulec, S. Z.; Kucuk, S. E.; Battal, E.; Okyay, A. K.; Tanrikulu, M. Y.; Akin, T. (SPIE, 2012)
      This paper introduces an analysis on the absorption enhancement in uncooled infrared pixels using resonant plasmon modes in metal structures, and it reports, for the first time in literature, broad-band absorption enhancement ...
    • Fabrication, characterization and simulation of plasmonic cavities 

      Karabıyık, Mustafa (Bilkent University, 2010)
      Surface plasmon polaritons (SPPs) originate from the collective oscillations of conduction electrons coupled with photons propagating at metal-dielectric interfaces. A uniform metallic gratings change the dispersion ...
    • Grating based plasmonic cavities 

      Şenlik, Servet Seçkin (Bilkent University, 2009)
      Surface plasmon polaritons are dipole carrying electromagnetic excitations occur- ing at metal-dielectric interfaces. Metallic periodic structures exhibit modi¯ed transmission and re°ection spectra owing to the interaction ...
    • Hybrid plasmon-phonon polariton bands in graphene-hexagonal boron nitride metamaterials [Invited] 

      Hajian, H.; Ghobadi, A.; Dereshgi, S. A.; Butun, B.; Ozbay, E. (Optical Society of America, 2017)
      We theoretically investigate mid-infrared electromagnetic wave propagation in multilayered graphene-hexagonal boron nitride (hBN) metamaterials. Hexagonal boron nitride is a natural hyperbolic material that supports highly ...
    • Lasing in a Slow Plasmon Moiré Cavity 

      Karademir, E.; Balci, S.; Kocabas, C.; Aydinli, A. (American Chemical Society, 2015)
      We report on lasing from dye-based excitons coupled to slow plasmon states inside metallic Moiré cavities. Surface plasmon polaritons (SPPs) inside the cavity were slowed down to a maximum group velocity of 0.3c. Varying ...
    • Light matter interaction in plexcitonic crystals and moiré cavities 

      Karademir, Ertuğrul (Bilkent University, 2015-01)
      Surface plasmon polaritons (SPPs) are quanta of electromagnetic excitations at the interface between metal and dielectric media. SPPs with an evanescent tail in the perpendicular direction, thus their properties are ...
    • Nearly perfect resonant absorption and coherent thermal emission by hBN-based photonic crystals 

      Hajian, H.; Ghobadi, A.; Butun, B.; Ozbay, E. (Optical Society of America, 2017)
      In this paper, we numerically demonstrate mid-IR nearly perfect resonant absorption and coherent thermal emission for both polarizations and wide angular region using multilayer designs of unpatterned films of hexagonal ...
    • Plasmonic band gap cavities 

      Kocabaş, Aşkın (Bilkent University, 2008)
      Surface plasmon polaritons (SPP’s) are trapped electromagnetic waves coupled to free electrons in metals that propagate at the metal-dielectric interfaces. Due to their surface confinement and potential in sub-wavelength ...
    • Slow plasmons in grating cavities 

      Aydinli, A.; Karademir, E.; Balci, S.; Kocabas, C. (SPIE, 2016)
      Recent research on surface plasmon polaritons and their applications have brought forward a wealth of information and continues to be of interest to many. In this report, we concentrate on propagating surface plasmon ...
    • Slowing surface plasmon polaritons on plasmonic coupled cavities by tuning grating grooves 

      Balci, S.; Kocabas, A.; Kocabas, C.; Aydinli, A. (American Institute of Physics, 2010)
      We investigate slow surface plasmon polaritons (SPPs) in plasmonic waveguiding bands formed by coupled plasmonic cavities on Moiŕ surfaces. We demonstrate controlling the group velocity and dispersion of the SPPs by varying ...
    • Tunable surface plasmon resonance on an elastomeric substrate 

      Olcum, S.; Kocabas, A.; Ertas G.; Atalar, Abdullah; Aydinli, A. (Optical Society of American (OSA), 2009)
      In this study, we demonstrate that periods of metallic gratings on elastomeric substrates can be tuned with external strain and hence are found to control the resonance condition of surface plasmon polaritons. We have ...