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1 Computer simulation of the light- intensity distribution of the interference pattern for hexagonal right-handed (RH) as well as left-handed (LH) photonic chiral structures using                                                                         6                           +                           1                                                                beam geometry. (a) 3D interference intensity distribution for RH structures. (c) Intensity profile in                                                                         x                           −                           z                                                                plane. (b) and (d) correspond to (a) and (c) for LH photonic chiral structures.
2 Decomposition of natural images into Fourier components. (a) All images can be expressed as a sum of 2D Fourier basis functions [e.g., (b)] by taking the sum over all values in (c) the basis-scaled image.
3 GPU simulation results with the same parameters as in Fig. 4 of [9]. Thickness of the medium is 1 cm, refractive index n=1.33, wavelength of light is 633 nm. Radius, refractive index, and scattering coefficient of the spherical scatterer in the simulations in (a) and (b) are rs=0.1  μm, ns=1.59, μs=10  cm−1, and in the sphere–cylinder mixed simulations in (c) and (d), μs=5  cm−1. For the cylindrical scatterer in the simulations in (c) and (d), rc=0.75  μm, nc=1.56, μc(90°)=65  cm−1. The direction of the cylinders is along the y axis, and the standard deviation for the Gauss distribution of the direction is 5°. The birefringence value in the simulations in (b) and (d) is 1×10−5, corresponding to an extension of 5 mm. The birefringence axis is along the 45° direction on the x–y plane. The cutoff numbers of scattering steps are all set to 200. The number of simulated photons is 1.2×108 for each group. The detector area is 1  cm×1  cm, partitioned into 100×100 pixels.
4 Experimental results using the proposed method: some typical 3-D geometries of the human face mask in wireframe mode.
5 20 × 24 pixel scan of a life-size mannequin at 324 m distance. fSample                         = 2 GHz, 7 × 106 pulses s−1, 16 ps histogram binning size, pattern length b = 16384 bits, 2 s per-pixel dwell time. Measurement acquired using a shallow-junction SPAD. (a) Close-up photograph of the scene. (b) Segmented surface plot of the scan, including several pixels locking onto background objects.
6 Profile of a stable 																								l									=									+									1																					 vortex soliton with 																								b									=									4.4																					, 																																		p										i																		=									0.55																					. Isosurface depicting the field modulus						distribution (left) at 																								|									q									|									=									0.07																					.
7 Liquid-crystal SLMs allow unprecedented control in the generation and detection of structured light fields. (a) Long exposure image of laser light diffracted from the pixelated device. (b) CCD camera image showing the various diffraction orders. Efficiencies are typically in the 60%–85% range.
8 Experimental results of the signal and reference speckled beams with triangular aperture and cross-correlations between them in the first, second, and third columns, respectively.
9 Plasmon energy ω in electron volts of a composite gold NT and gold core system, for q=0 and m=2, using ωp=1.37×1016  Hz, plotted versus δ and d, when a1=7  nm.
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11 Phase distribution of the diffraction pattern observed at                                                                         z                           ∕                           L                           =                           2.0                                                               , caused by a finite-radius SPP with fractional topological charge                                                                         α                           =                           2.5                                                               . We can see the chain of unit strength vortices on the                                                                         +                           x                                                                axis.
12 WFDI-based phase profile of a cardiomyocyte during a single beating cycle, 40 × . White horizontal scale bar represents 10 µm. Vertical color bar is in radians. Dynamics, 120 fps for 1 sec: Media 3.
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