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Optics & Photonics Sep 30, 2022

Researchers propose and demonstrate an optical black hole cavity based on transformation optics

Whispering-gallery-mode (WGM) cavities represent an intriguing platform for intensely enhancing light-matter interaction. It lays the foundations for ultra-low threshold lasers, ultra-sensitive sensing, nonlinear optics and ...

Nanophysics Sep 26, 2022

New nanocomposite films boost heat dissipation in thin electronics

The last few decades have witnessed a tremendous advance in electronics technology, with the development of devices that are thinner, lightweight, flexible, and robust. However, as the devices get thinner so does the space ...

Nanomaterials Sep 6, 2022

Liquid cell transmission electron microscopy analysis of semiconductor nanocrystals

Semiconductor nanocrystals of different sizes and shapes can govern the optical and electrical properties of materials. Liquid cell transmission electron microscopy (LCTEM) is an emerging method to observe nanoscale chemical ...

Nanomaterials Aug 31, 2022

Simple technique ushers in long-sought class of semiconductors

Breakthroughs in modern microelectronics depend on understanding and manipulating the movement of electrons in metal. Reducing the thickness of metal sheets to the order of nanometers can enable exquisite control over how ...

General Âé¶¹ÒùÔºics Aug 30, 2022

Brain bubbles: Researchers describe the dynamics of cavitation in soft porous material

A tiny bubble popping within a liquid seems more fanciful than traumatic. But millions of popping vapor bubbles can cause significant damage to rigid structures like boat propellers or bridge supports. Can you imagine the ...

Space Exploration Aug 18, 2022

The effect of Martian ionospheric dispersion on SAR imaging

The subsurface of Mars records important historical information on the formation and evolution of the planet. As an ionized medium, the Martian ionosphere plays a special role in radio wave propagation and is directly related ...

Condensed Matter Aug 9, 2022

The experimental observation of long-lived phantom helix states in Heisenberg quantum magnets

Researchers at Massachusetts Institute of Technology (MIT), the MIT-Harvard Center for Ultracold Atoms, Harvard University and Stanford University have recently unveiled the existence of unique helical spin states in Heisenberg ...

Nanomaterials Aug 3, 2022

Significant advance in 2D material science with diversely behaving layers in a single bulk material

Scientists from The University of Manchester have developed a novel yet simple method for producing vertical stacks of alternating superconductor and insulator layers of tantalum disulphide (TaS2). The findings, from a team ...

Condensed Matter Aug 3, 2022

Evidence of a new type of disordered quantum Wigner Solid

Âé¶¹ÒùÔºicists have been trying to determine the ground states of 2D electron systems at extremely low densities and temperatures for many decades now. The first theoretical predictions for these ground states were put forward ...

Astronomy Jul 22, 2022

Unraveling the mystery of the quasar's 'anisotropic' effects on surrounding gas

A team led by Prof. Toru Misawa of the School of General Education, Shinshu University found for the first time that the internal donut-shaped structure of the central nuclei of bright galaxies in the distant universe can ...

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