Image of the week

The 3D scattering patterns of (a) DM under x-polarized wave normal incidence and PCDM under (b) x-polarized and (c) y-polarized wave normal incidence at 10 GHz., Image taken from Yaqiang Zhuang et al 2017 J. Phys. D: Appl. Phys. 50 465102, © IOP Publishing, All Rights Reserved.

Image of the Week: Flexible, polarization-controllable diffusion metasurface with optical transparency

By Georgia Longstaff on November 13, 2017

This week’s Image of the Week comes from JPhysD article “Flexible and polarization-controllable diffusion metasurface with optical transparency“, Yaqiang Zhuang et al 2017 J. Phys. D: Appl. Phys. 50 465102. Metasurfaces- planar metamaterials of sub-wavelength thickness- are structures with the ability to manipulate electromagnetic waves… Read More ›

Joint 2D membrane potential distribution of simulated neuron dynamics is compared to the joint distribution computed with the singular value decomposition method, demonstrating either heterogeneity in intrinsic parameters or in input rate. The results are presented for a range of four asymmetric parameters.

Image of the Week: Joint statistics of strongly correlated neurons via dimensionality reduction

By Phil Brown on October 23, 2017

This week’s image is taken from a study of Joint statistics of strongly correlated neurons via dimensionality reduction as part of the Modelling and inference in the dynamics of complex interaction networks special issue of Journal of Physics A: Mathematical… Read More ›

Top photos show photographs of single fibres fabricated by melt electropinning, with collector speeds of a) 0.4 m min−1, b) 0.8 m min-1, c) 1 m min-1. Lower photo shows a 3D structure of NWPU (for Northwestern Polytechnical University, Xi'an, where this work took place) which was prepared in a direct-writing way using thirty layers of melt electrospinning. Image taken from Feng-Li He et al 2017 J. Phys. D: Appl. Phys. 50 425601, © IOP Publishing, All Rights Reserved.

Image of the Week: Direct writing using 3D printed, melt electrospun fibres

By Georgia Longstaff on October 16, 2017

This week’s Image of the Week comes from JPhysD article ‘Investigation of the effects of melt electrospinning parameters on the direct-writing fiber size using orthogonal design’, Feng-Li He et al 2017 J. Phys. D: Appl. Phys. 50 425601. Melt electrospinning is an effective and simple… Read More ›

Coalescence of Pickering emulsions for increasing degrees of silicon nanoparticle coverage, φwt. Image taken from L A Chacon and J C Baret 2017 J. Phys. D: Appl. Phys. 50 39LT04, © IOP Publishing, All Rights Reserved.

Image of the week: Coalescence of Pickering emulsions.

By Georgia Longstaff on September 18, 2017

This week’s Image of the Week is taken from JPhysD article Microfluidic angle of repose test for Pickering emulsions, L A Chacon and J C Baret 2017 J. Phys. D: Appl. Phys. 50 39LT04. In this paper the authors propose a microfluidic version of the… Read More ›

Trajectories for a dynamical system. The colormap is chosen so that blue and yellow correspond to sparse and highly dense regions, respectively.

Image of the Week: Convergent chaos

By Phil Brown on August 28, 2017

For our image this week we’ve taken an image from Covergent chaos, a recent paper published in Journal of Physics A. Marc Pradas, Alain Pumir, Greg Huber and Michael Wilkinson study the instabilities and convergence of trajectories revealing and commenting… Read More ›

Polarization conversion by an all-dielectric metasurface of a linear polarization mode to vector modes a) radial polarization b) azimuthal polarization c,d) a superposition of radial and azimuthal modes. Image taken from Tongming Liu et al 2017 J. Phys. D: Appl. Phys. 50 334001, © IOP Publishing, All Rights Reserved.

Image of the week: Polarization conversion using an all-dielectric metasurface.

By Georgia Longstaff on August 21, 2017

This week’s Image of the Week is taken from JPhysD article Polarization conversion based on an all-dielectric metasurface for optical fiber applications,Tongming Liu et al 2017 J. Phys. D: Appl. Phys. 50 334001. In this paper the authors propose polarization conversion… Read More ›

A representative image for non-resonant ionization of hydrogen in the presence of a 796 V cm−1 DC electric field, for a value of the scaled electron energy. The image consists of two concentric rings (direct, inner, and indirect, outer), that arise from direct and indirect electron trajectories. Within the inner ring, an interference pattern is clearly visible, taken from A S Stodolna et al 2017 J. Phys. B: At. Mol. Opt. Phys. 50 164001

Image of the week: photoionization of hydrogen

By Thomas Farrell on August 9, 2017

In a recent paper published in JPhysB, researchers collaborating from Greece, France, Germany, The Netherlands and the United States observe a checkerboard interference pattern in the transverse momentum distribution for single-photon ionization of hydrogen atoms in a DC electric field…. Read More ›

Image of the week: Profiles of the matter density and electron fraction inside a massive neutron star

By Holly Young on July 31, 2017

Our Image of the Week is taken from the JPhysG article Neutrino pair annihilation above merger remnants: implications of a long-lived massive neutron star, which was published within our Emerging Leaders Special Issue. Specifically, this is a vertical slice (x… Read More ›

Charge density in a double layer Black Phosphorus Quantum Dot. Image taken from M A Lino et al 2017 J. Phys. D: Appl. Phys. 50 305103 © IOP Publishing, All Rights Reserved.

Image of the Week: Charge Density in Black Phosphorous Quantum Dot

By Georgia Longstaff on July 24, 2017

This week’s Image of the Week is taken from M A Lino et al 2017 J. Phys. D: Appl. Phys. 50 305103. In this paper the authors investigate the feasibility of producing Single Electron Transistors from Black Phosphorus Quantum Dots. The… Read More ›

Image of the Week: Band inversion due to anisotropic spin-orbit coupling results in a Lifshitz transition in disordered graphene

By Andy Massey on July 17, 2017

This week’s image is from a paper recently published in Journal of Physics: Condensed Matter: The influence of anisotropic Rashba spin–orbit coupling on current-induced spin polarization in graphene. This work by Mir Vahid Hosseini uses Green’s function method and linear response theory to… Read More ›

$A jump process approximates the diffusion in figure 4. On the left, a close-up view of a sub-system shows the transition rates on the lattice. On the right, the steady-state behavior of the full state space $(\boldsymbol{x} \in [-2, 2] \times [-2, 2])$ is shown for $A = 8, B = 5, D = 1, \mu = 1$ . The steady-state density primarily resides in the four wells, but the external field drives some clockwise current around the origin.$

Image of the Week: Markov jumps and current fluctuations

By Phil Brown on July 3, 2017

This week’s image is taken from a study Inferring dissipation from current fluctuations as part of the Emerging Talents special issue on Journal of Physics A. Todd R Gingrich, Grant M Rotskoff and Jordan M Horowitz study Markov jumps in… Read More ›

DNA-strand breaks within a gelatin tissue model after treatment with a neutral He gas jet. Image taken from Endre J Szili et al 2017 J. Phys. D: Appl. Phys. 50 274001, © IOP Publishing, All Rights Reserved.

Image of the Week: DNA-strand breaks within tissue model after treatment with neutral He gas jet

By Dean Williams on June 26, 2017

This week’s image is taken from the recent Emerging Leaders article by Endre J Szili, Nishtha Gaur, et al. It shows DNA-strand breaks within a gelatin tissue model after treatment with a neutral He gas jet. The figure is an overlay of phase-contrast… Read More ›

Image of the week: Quasicrystalline structure of small spherical viral capsids

By Andy Massey on June 19, 2017

Journal of Physics: Condensed Matter is currently running a Special Issue on soft quasicrystals, guided by guest editors Primoz Ziherl & Tomonari Dotera. This week’s image is from one of the most recent articles of the issue by Sergei Rochal… Read More ›

Image of the week: Evolution of beam collection by ISOLTRAP

By Holly Young on June 6, 2017

This weeks image comes courtesy of the Journal of Physics G: Nuclear and Particle Physics special issue “Focus on Exotic Beams at ISOLDE: A Laboratory Portrait” The photograph in the image shows what is thought to be the largest quadruple… Read More ›

Image of the week: Phase behavior of ternary oxide layers

By Tom Sharp on May 22, 2017

This weeks image come from a Journal of Physics: Condensed Matter Special Issue on oxide interfaces

Image of the week: strong fields with optical waveguides

By Thomas Farrell on May 15, 2017

Showing that strong-field physics can be simulated using an optical waveguide.

Image of the Week: Free and Boundary Loops

By Phil Brown on May 8, 2017

Today’s Image of the Week comes from a study of A formula for crossing probabilities of critical systems inside polygons. The manuscript is from our Emerging Talents special issue on Journal of Physics A: Mathematical and Theoretical. Steven Flores, currently… Read More ›

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