2014/11/24 by Mihail Petrov, Mihail I. Petrov · 21 citations
Engineering · Materials Science · Physics and Astronomy · #Atomic physics #Condensed matter physics #Dipole #Gold and Silver Nanoparticles Synthesis and Applications #Materials science #Molecular physics #Molecule #Nanoparticle #Nanotechnology #Optics #Optoelectronics #Orbital Angular Momentum in Optics #Physics #Plasmon #Plasmonic and Surface Plasmon Research #Plasmonic nanoparticles #Polarizability #Quantum mechanics #Raman scattering #Raman spectroscopy #Range (aeronautics) #Resonance (particle physics) #Singularity #Van Hove singularity #cond-mat.dis-nn #physics.optics
paper · pdf · doi:10.1103/physreva.91.023821
published in Physical Review A 91(2) (American Physical Society) · 9 pages, 9 figures, 41 references, regular paper
arxiv created 2014/11/24 · openalex publication_date 2015/02/17 · arxiv updated 2015/03/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this paper we report on a numerical study of plasmonic nanoparticle chains with long-range dipole-dipole interaction. We have shown that introduction of positional disorder gives a peak in the density of resonant states at the frequency of individual nanoparticle resonance. This peak is referred to as Dyson singularity in one-dimensional disordered structures and, according to our calculations, governs the spectral properties of local density of states. This provides disorder-induced Purcell enhancement that can find applications in random lasers and for surface-enhanced Raman-scattering spectroscopy. We stress that this effect relates not only to plasmonic nanoparticles but also to an arbitrary chain of nanoparticles or atoms with resonant polarizabilities.