Journal Covers

Damaged optical surface
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The authors present both simulation and experimental results to examine the use of IR laser light to polish, anneal, and micro‐shape fused silica surfaces used in high power laser systems.
Density functional tight binding (DFTB) models for carbon
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Reports on the development of many-body density functional tight binding (DFTB) models for carbon, which include either explicit or implicit calculation of multi-center terms in the Hamiltonian.
Light‐activated bioelectronic silicon nanowire transistor
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Light‐activated bioelectronic silicon nanowire transistor devices are made by fusing proteoliposomes containing a bacteriorhodopsin (bR) proton pump onto the nanowire surface.
Erupting volcano painting
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One contributory factor to the “warming hiatus” is an increase in volcanically induced cooling over the early 21st century. Here a research team identifies the signals of late 20th and early 21st century volcanic activity in multiple observed climate variables.
Electron microscope images
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Pulsed electron sources with high instantaneous current have successfully shortened exposure times (thus increasing the temporal resolution) by about six orders of magnitude over conventional sources while providing the necessary signal-to-noise ratio for dynamic imaging.
graphene macro-assembly
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The research team demonstrates that the energy storage capacity of graphene macro-assemblies can be increased nearly 3-fold (up to 23 W h kg−1) by facile, non-covalent surface modification with anthraquinone (AQ).
Nanoporous metal array
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A low‐cost, high‐throughput, lift‐off‐free nanolithographic method is developed for creating hexagonal arrays of sub‐30‐nm‐sized pores on a metal film, achieving uniform coverage over an entire wafer of 10 cm in diameter.
3D printed elastomeric  material
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Three‐dimensional printing of viscoelastic inks to create porous, elastomeric architectures with mechanical properties governed by the ordered arrangement of their sub‐millimeter struts is reported.
nanotubular bulk material
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The synthesis of ultralow‐density (>5 mg/cm3) bulk materials with interconnected nanotubular morphology and deterministic, fully tunable feature size, composition, and density is presented.
Interior of National Ignition Facility
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We describe ramp-compression measurements for diamond, achieving 3.7-fold compression at a peak pressure of 5 terapascals (equivalent to 50 million atmospheres).