31 citations · 81 across the 7 of their papers we have counts for
7 papers
High-Q guided-mode resonance of a crossed grating with near-flat dispersion
Reuben Amedalor, Petri Karvinen, Henri Pesonen +3
Guided-mode resonances in diffraction gratings are manifested as peaks (dips) in reflection (transmission) spectra. Smaller resonance line widths (higher Q-factors) ensure stronger…
Finite size mediated radiative coupling of lasing plasmonic bound state in continuum
Benjamin O. Asamoah, Marek Nečada, Wenzhe Liu +12
Radiative properties of lasing plasmonic bound state in continuum are analyzed. The topological charge of the lasing signal is analyzed in the far field as well as in the source pl…
Inverse design of focused vector beams for mode excitation in optical nanoantennas
Xiaorun Zang, Ari T. Friberg, Tero Setälä +1
We propose a free-space, inverse design of nanostructure's effective mode-matching fields via a backward propagation of tightly focused vector beams to the pupil plane of an aplana…
Efficient hybrid-mode excitation in plasmonic nanoantennas by tightly focused higher-order vector beams
Xiaorun Zang, Godofredo Bautista, Léo Turquet +3
Efficient optical excitation of hybridized plasmon modes in nanoantennas is vital to achieve many promising functionalities, but it can be challenging due to a field-profile mismat…
Metamaterials designed for enhanced ENZ properties]{Metamaterials designed for enhanced ENZ properties
Matias Koivurova, Tommi Hakala, Jari Turunen +3
We examine layered metamaterial structures consisting of alternating films of epsilon-near-zero (ENZ) and dielectric material, and show that for such a stack it is possible to enha…
Experimental Demonstration of Spectral Intensity Optical Coherence Tomography
Piotr Ryczkowski, Jari Turunen, Ari T. Friberg +1
We demonstrate experimentally quantum-inspired, spectral-domain intensity optical coherence tomography. We show that the technique allows for both axial resolution improvement and…
Shifted-elementary-mode representation for partially coherent vectorial fields
Jani Tervo, Jari Turunen, Pasi Vahimaa +1
A representation of partially spatially coherent and partially polarized stationary electromagnetic fields is given in terms of mutually uncorrelated, transversely shifted, fully c…