Light–Matter interactions on the nanoscale
Nano-optics has become a very efficient tool to control light–matter interactions beyond the diffraction limit. The understanding of the optical response from individual and coupled nanoparticles has led to unprecedented development in a wide spectrum of scientific disciplines, ranging from molecular optics and biology, to nonlinear spectroscopy and clean energy. Research in the field of nano-optics now presents an opportunity to build on the existing work and establish novel directions for this area of research. Related to this goal, this Thematic Series covers various interactions between light and matter occuring on the nanoscale including:
- Metallic & plasmonic nanomaterials
- Dielectric and semiconductor nanostructures
- Nonlinear nano-optics
- Nearfield optics
- Optofluidics
- Full Research Paper
- Published 24 Aug 2017
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Figure 1: 2D profiles of uncoated Si samples processed at 5 W. Results obtained from measurements when using ...
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Figure 2: 2D profiles of uncoated Si samples processed at 50 kHz. Results obtained from measurements when usi...
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Figure 3: Temperature contours obtained from the numerical model at the end of the pulse at 50 kHz and 5 W fo...
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Figure 4: 2D profiles of Al coated Si samples processed at 5 W. Results obtained from measurements when using...
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Figure 5: 2D profiles of Al coated Si samples processed at 50 kHz. Results obtained from measurements when us...
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Figure 6: 2D profiles of Au coated Si samples processed at 5 W. Results obtained from measurements when using...
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Figure 7: 2D profiles of Au coated Si samples processed at 50 kHz. Results obtained from measurements when us...
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Figure 8: (a) Isolated pulse on the surface of silicon, (b) Isolated pulse on the surface of silicon coated b...
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Figure 9: The computational flowchart at each time step.
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Figure 10: The flowchart of evaporation process.
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- Letter
- Published 09 Jan 2018
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Figure 1: (a) Optical image of exfoliated hBN flakes. (b) Schematic of a 2D photonic crystal with an L3 cavit...
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Figure 2: (a) Q-factors of various 2D photonic crystal cavities with an increasing number of linear defects, ...
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Figure 3: (a) Calculated electric field intensity distribution for a 1D photonic crystal cavity. 3D FDTD simu...
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Figure 4: (a) Q-factor of the fundamental mode in a 1D photonic crystal cavity versus the imaginary refractiv...
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- Full Research Paper
- Published 06 Feb 2018
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Figure 1: Diagram of the metasurface. The geometrical parameters are Lx = 100 nm, Ly = 600 nm, Lz = 200 nm, t...
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Figure 2: (a) Bandgap energy (blue curve) and variation of refractive index (dark curve) versus temperature c...
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Figure 3: Scattering cross section (a) before and (b) after heating, including zoomed in on Kerker condition ...
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Figure 4: (a) The transmission spectrum during the heating process. (b) The transmission at 1235 nm during th...
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Figure 5: The transmission spectrum for three different SiO2 thicknesses (a) t = 150 nm, (b) t = 250 nm and (...
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Figure 6: (a) Third harmonic generation efficiency (normalized by the incident pump for each unit cell) durin...
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- Full Research Paper
- Published 02 Mar 2018
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Figure 1: Design principles of the directional emission from the different TMDC valleys. (a) The proposed sch...
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Figure 2: Characteristics of the bar antenna excited by an electric dipole emitter. (a, b) Schematic of the s...
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Figure 3: Radiation properties of a double-bar plasmonic antenna. (a) Schematic view of the double-bar antenn...
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Figure 4: Emission pattern averaged over multiple emitters. (a) Schematic of the three emitter positions insi...
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- Full Research Paper
- Published 04 Apr 2018
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Figure 1: A schematic of the measured and simulated QD system. The dimensions of the simulated structure are ...
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Figure 2: The atomistic grid of the simulated QD showing only cations (Al,Ga,In) to emphasize the randomness ...
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Figure 3: Bond lengths and bond angle for three neighboring atoms m, n, and k.
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Figure 4: An InAs/GaAs quantum well of thickness 3 nm used for the optimization of the anharmonic strain mode...
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Figure 5: The simulated and the measured absorption spectrum of the QD system. The quantum dot is sample D fr...
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Figure 6: The magnitude square of the wave functions of the electron and hole states. Only the first eight el...
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Figure 7: The conduction and valence band edges (solid lines) along a line through the middle of the quantum ...
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Figure 8: The in-plane polarized absorption spectrum calculated for (A) different diameters and (B) different...
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Figure 9: Hydrostatic εH and biaxial εB strain with different dimensions along a line through the middle of t...
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Figure 10: Experimental and simulation results of the optical transition of the QD system reported in [9]. Increa...
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Figure 11: Hydrostatic and biaxial strain with different mole fractions of In along a line passing through the...
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- Full Research Paper
- Published 20 Apr 2018
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Figure 1: Graphene: a) unit cell with electrodes; b) transmission function (green: dk = 0.1 1/Å, blue: dk = 0...
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Figure 2: Transmission function: a) Т(Е) for three different ky; b) the distribution of points of the transmi...
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Figure 3: Graphene transmission function: a) a map of T(E) for the initial partitioning over ky (from above) ...
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Figure 4: Graphane transmission function: a) a map of T(E) for the initial partitioning over ky (top) and (bo...
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Figure 5: 2D composite of pillared graphene based on CNT (9,9) with a length of 2.4 nm: a) atomic structure; ...
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Figure 6: Two-layer 2D composite of pillared graphene based on CNT (9,9) with a length of 2.4 nm: a) atomic s...
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Figure 7: Plots of the transmission functions for two-layer (blue) and single-layer (red) composites (the tub...
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- Letter
- Published 30 Apr 2018
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Figure 1: Topological model of 2D CNT-graphene hybrid nanocomposite.
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Figure 2: A fragment of the 2D CNT–graphene hybrid nanocomposite and configuration of an incident electromagn...
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Figure 3: The optical conductivity of 2D CNT–graphene hybrid nanocomposites with an intertube distance of 13 ...
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Figure 4: The optical conductivity of 2D CNT–graphene hybrid nanocomposites with an intertube distance of 13 ...
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Figure 5: The absorption coefficient of 2D CNT–graphene hybrid nanocomposites with an intertube distance of 1...
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Figure 6: The absorption coefficient of 2D CNT-graphene hybrid nanocomposite with the same tube (18,0) and di...
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Figure 7: Absorption coefficient of a 2D CNT–graphene hybrid nanocomposite (tube (18,0), 13 hexagons intertub...
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- Full Research Paper
- Published 16 May 2018
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Figure 1: a) Illustration of cut-wire sandwich structure. W, L, g, Zd and Zg are width of cut wire (20 µm), l...
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Figure 2: Microscopy images of the fabrication samples: a) Cut-wire sandwich structure, b) cross-shaped sandw...
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Figure 3: Reflectance–transmittance–absorbance (RTA) simulation results: a) Cut-wire sandwich structure, b) c...
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Figure 4: The simulation result of the absorbance difference for the cut-wire width of the cross-shaped sandw...
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Figure 5: Permeability (µ), permittivity (ε), refractive index (n), and impedance (Z) properties of: a) Cut-w...
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Figure 6: The peak value of electric field and magnetic field of: a) Cut-wire sandwich structure, b) cross-sh...
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Figure 7: The simulation result of the absorbance difference for polarization angles from 0° to 90° of: a) Cu...
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Figure 8: The measured results of reflectance, transmittance and absorbance under normal incidence: a) Cut-wi...
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Figure 9: Measured absorbance results for polarization angles from 0° to 90° for: a) Cut-wire sandwich struct...
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- Full Research Paper
- Published 17 May 2018
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Figure 1: Plots of the normalized scattered power (Psca/Pinc) in dB, decomposed into its multipolar contribut...
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Figure 2: a) 2D plot of the normalized scattered power (Psca/Pinc) in dB as a function of the cubic root of t...
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Figure 3: Comparison of the scattering behavior of two disks of the same aspect ratio but of different size u...
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- Full Research Paper
- Published 18 May 2018
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Figure 1: Scanning electron micrographs aperture structures with dimensions defined in (a). Fabricated slot t...
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Figure 2: (a) CL spectra obtained from trimer slot structures with L = 95 nm, W = 40 nm and S = 60 nm obtaine...
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Figure 3: (a) CL spectrum from trimer slot structures with slot length 150 nm, width 65 nm and separation 100...
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Figure 4: Simulated power radiated by a vertically oriented point dipole located 30 nm above a 100 nm thick g...
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Figure 5: Electric field inside a trimer of rectangular slots of length 100 nm and width 40 nm in a gold film...
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Figure 6: Simulated power radiated by a vertically oriented point dipole located 30 nm above a 100 nm thick g...
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Figure 7: Electric field inside a trimer of rectangular slots of length 150 nm and width 65 nm separated by a...
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