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Condensed Matter Oct 16, 2024

Tesla-inspired method can control the direction of heat flow in graphite crystals

Researchers from the Institute of Industrial Science, The University of Tokyo, have developed a method to control the direction of heat flow in crystals. This miniature device could eventually be used to create advanced thermal-management ...

Optics & Photonics Oct 9, 2024

Hybrid fiber pump combiner could advance mid-IR laser systems

In the last two decades, the rapid advancement in applications such as environmental monitoring, medical diagnostics, and global positioning has intensified the focus on developing novel mid-IR light sources. Fiber-based ...

Condensed Matter Sep 27, 2024

Discovering quasiparticles ejected from color centers in diamond crystals

A research group led by University of Tsukuba has observed the cooperative behavior of polaron quasiparticles formed by the collective interaction of electrons and lattice vibrations around color centers in diamond crystals.

Nanophysics Sep 24, 2024

Researchers reveal the reality of lossless energy transport in topological insulators

Topological insulators raise the exciting hope of realizing lossless energy transport, which is true at ultralow temperatures. However, topological insulators fail to maintain this lossless 'magic' at room temperature.

Nanophysics Sep 23, 2024

Novel computational method addresses obstacles in phonon-based heat simulation

As electronic devices become increasingly miniaturized, heat management at the nanoscale emerges as a challenge, especially for devices operating in sub-microns. Traditional heat conduction models fail to capture the complex ...

Nanophysics Sep 20, 2024

Light momentum turns pure silicon from an indirect to a direct bandgap semiconductor

UC Irvine-led research reveals that the optical properties of materials can be dramatically enhanced—not by changing the materials themselves, but by giving the light new properties.

Condensed Matter Sep 16, 2024

New strategy for simulating nonadiabatic dynamics of molecules at metal surfaces

A research team has proposed a novel approach to accurately describe electron transfer mediated nonadiabatic dynamics of molecules at metal surfaces. Their works were published in Âé¶¹ÒùÔºical Review Letters.

Optics & Photonics Sep 6, 2024

Improved method for phonon lasers 'locks' sound waves into a more stable and powerful state

Scientists have made a significant leap in developing lasers that use sound waves instead of light. These phonon lasers hold promise for advancements in medical imaging, deep-sea exploration, and other areas.

Soft Matter Sep 6, 2024

Discovery of a new convective instability in complex fluids, 140 years after Lord Rayleigh

An altogether new convective instability has been predicted and experimentally discovered, 140 years after Lord Rayleigh. Convective instabilities are of fundamental importance for both our everyday life as well as for ecology ...

Optics & Photonics Sep 2, 2024

Scientists demonstrate giant THz Kerr effect via stimulated phonon polaritons

Terahertz (THz) waves and THz technologies have gradually opened a new style for communications, cloud-based storage/computing, information contest, and medical tools. With the advancement of THz technologies, studies on ...

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