Results 111 to 120 of about 1,498,110 (248)
The multi-photon induced Fano effect
Nature Communications, 2021 Fano resonances occur in many platforms that have auto-ionizing states. Here the authors show that auto-ionizing states are not required for multi-photon Fano resonance in a Si:P system with significant screening by using a pump-probe method.
K. L. Litvinenko +7 more
doaj +1 more source
Anomalous Fano Profiles in External Fields
, 2015 We show that external control of Fano resonances in general leads to complex Fano $q$-parameters. Fano line shapes of photo-electron and transient absorption spectra in presence of an infrared control field are investigated. Computed transient absorption
Burgdörfer, Joachim +5 more
core +1 more source
Sharp Fano resonances in THz metamaterials
Optics Express, 2011 We report on the occurrence of sharp Fano resonances in planar terahertz metamaterials by introducing a weak asymmetry in a two gap split ring resonator. As the structural symmetry of the metamaterial is broken a Fano resonance evolves in the low-frequency flank of the symmetric fundamental dipole mode resonance.
Ranjan, Singh +3 more
openaire +2 more sources
Fano resonances in prism-coupled multimode square micropillar resonators [PDF]
Optics Letters, 2005 We report Fano resonances in a multimode square glass micropillar resonator; the resonances were obtained by using angle-resolved prism coupling. Our experiments reveal characteristically asymmetric line shapes of high-Q resonances and of detuned low-Q resonances in multimode reflection spectra.
Lee, Ho Tong +2 more
openaire +3 more sources
Laser &Photonics Reviews, EarlyView.This work presents the first experimental investigation of ultrafast dynamics in dielectric bowtie nanocavities, featuring deep‐subwavelength mode confinement. Measurements reveal enhanced two‐photon absorption, sub‐picosecond carrier relaxation, and strong pump–probe interactions, demonstrating clear advantages over conventional nanocavities for low ...
Gaoneng Dong +6 more
wiley +1 more source
Sensing Based on Fano-Type Resonance Response of All-Dielectric Metamaterials
Sensors, 2015 A new sensing approach utilizing Mie resonances in metamaterial arrays composed of dielectric resonators is proposed. These arrays were found to exhibit specific, extremely high-Q factor (up to 15,000) resonances at frequencies corresponding to the lower
Elena Semouchkina +3 more
doaj +1 more source
Tunable polarization-induced Fano resonances in stacked wire-grid metasurfaces
Communications Physics, 2021 Fano resonance is an important phenomenon for optical devices particularly for application in switching and sensing. Here, the authors demonstrate theoretically and experimentally that Fano resonances can be induced using the polarization dependent ...
Xavier Romain +3 more
doaj +1 more source
Photonic Sensors, 2018 A refractive index sensor based on Fano resonances in metal-insulator-metal (MIM) waveguides coupled with rectangular and dual side rings resonators is proposed. The sensing properties are numerically simulated by the finite element method (FEM). For the
Xuewei Zhang +5 more
semanticscholar +1 more source
Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials
Laser &Photonics Reviews, EarlyView.This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf +8 more
wiley +1 more source
Plasmonic Spectral Splitting in Ring/Rod Metasurface
Nanomaterials, 2017 We report spectral splitting behaviors based on Fano resonances in a novel simple planar metasurface composed of gold nanobars and nanorings. Multiple plasmonic modes and sharp Fano effects are achieved in a broadband transmittance spectrum by exploiting
Naseer Muhammad +6 more
doaj +1 more source