14 citations · 34 across the 4 of their papers we have counts for
6 papers · 1 filter
Laser polarization as a critical factor on the SERS-based molecular sensing performance of nano-gapped Au nanowires
Simón Roa, Terunori Kaihara, María Laura Pedano +2
Nowadays, Au dimer-based nanostructures are exhaustively studied due to their outstanding potential as plasmonic nanoantennas for future applications in high-sensitivity molecular…
Broadband tunable mid-infrared absorber based on conductive strip-like meta-atom elements
Henrik Parsamyan, Hovhannes Haroyan, Khachatur Nerkararyan
A metamaterial composed of thin metallic strips as an efficient broadband absorber in the mid-infrared spectrum is investigated. Here the matching between dielectric and geometrica…
Analysis of bistability at the coupling between waveguide and whispering gallery modes of a nonlinear hemicylinder
Henrik Parsamyan, Khachik Sahakyan, Khachatur Nerkararyan
The optical bistability caused by the coupling between modes of the parallel-plate waveguide and a nonlinear hemicylindrical crystal is studied using theoretical and numerical anal…
Near-Perfect Broadband Infrared Metamaterial Absorber Utilizing Nickel
Henrik Parsamyan
We propose a thin, compact, broadband, polarization and angle insensitive metamaterial absorber based on a tungsten reflector, silicon spacer and a top pattern composed of a double…
Light control in a hemicylindrical whispering gallery microcavity-parallel plate waveguide system
Henrik Parsamyan, Hovhannes Haroyan, Khachatur Nerkararyan
We have shown that a structure composed of a semiconductor hemicylinder and a dielectric waveguide separated by a thin metal layer permits efficient and easy light control. In such…
Efficient broadband infrared absorbers based on core-shell nanostructures
Henrik A. Parsamyan, Khachatur V. Nerkararyan, Sergey I. Bozhevolnyi
We suggest to exploit dielectric-metal core-shell nanostructures for efficient resonant and yet broadband absorption of infrared radiation with deeply subwavelength configurations.…