69 citations · 182 across the 7 of their papers we have counts for
7 papers
Inverse-Designed Superchiral Hot Spot in Dielectric Meta-Cavity Toward Ultra-Compact Enantioselective Detection
Anastasia Romashkina, Omer Yesilurt, Vahagn Mkhitaryan +8
Chiral nanophotonic structures have garnered considerable interest in recent years due to their potential to enhance the efficacy of chirality-sensitive biomolecular detection. Des…
Unveiling the coupling of single metallic nanoparticles to whispering-gallery microcavities
Yves Auad, Cyrille Hamon, Marcel Tencé +6
Whispering-gallery mode resonators host multiple trapped narrowband circulating optical resonances that find applications in quantum electrodynamics, optomechanics, and sensing. Ho…
Can Copper Nanostructures Sustain High-Quality Plasmons?
Vahagn Mkhitaryan, Katia March, Eric Tseng +10
Silver is considered to be the king among plasmonic materials because it features low inelastic absorption in the visible and infrared (vis-IR) spectral regions compared to other m…
Ultrafast Momentum-Resolved Probing of Plasmon Thermal Dynamics with Free Electrons
Vahagn Mkhitaryan, Eduardo J. C. Dias, Fabrizio Carbone +1
Current advances in ultrafast electron microscopy make it possible to combine optical pumping of a nanostructure and electron beam probing with subångstrom and femtosecond spatiote…
Nanoscale Nonlinear Spectroscopy with Electron Beams
Andrea Konečná, Valerio Di Giulio, Vahagn Mkhitaryan +2
We theoretically demonstrate the ability of electron beams to probe the nonlinear photonic response with nanometer spatial resolution, well beyond the capabilities of existing opti…
Tailored nanoscale plasmon-enhanced vibrational electron spectroscopy
Luiz H. G. Tizei, Vahagn Mkhitaryan, Hugo Lourenço-Martins +12
Vibrational optical spectroscopies can be enhanced by surface plasmons to reach molecular-sized limits of detection and characterization. The level of enhancement strongly depends…
Lasing and Amplification from Two-Dimensional Atom Arrays
Vahagn Mkhitaryan, Lijun Meng, Andrea Marini +1
We explore the ability of two-dimensional periodic atom arrays to produce light amplification and generate laser emission when gain is introduced through external optical pumping.…