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Optics & Photonics May 23, 2025

Upgraded design enables blue OLEDs to match green OLEDs in efficiency and lifespan

Blue phosphorescent OLEDs can now last as long as the green phosphorescent OLEDs already in devices, University of Michigan researchers have demonstrated, paving the way for further improving the energy efficiency of OLED ...

Nanophysics May 21, 2025

Single-molecule spectroscopy reveals isotope effect in hydrogen confined to picocavities

An international research team has successfully achieved single-molecule spectroscopic observation of hydrogen (H2) and deuterium (D2) confined within a picocavity. The picocavity was formed between a silver nanotip and a ...

Condensed Matter May 21, 2025

Researchers simulate tens of thousands of electrons in real time

A research team from the Department of Energy's Oak Ridge National Laboratory, in collaboration with North Carolina State University, has developed a simulation capable of predicting how tens of thousands of electrons move ...

Nanophysics May 21, 2025

Flat optical metasurfaces in conductive plastics achieve 10-fold performance boost

By carefully placing nanostructures on a flat surface, researchers at Linköping University, Sweden, have significantly improved the performance of so-called optical metasurfaces in conductive plastics. This is a major step ...

Nanophysics May 20, 2025

From thin to bulk: Affordable, brighter and faster scanning with high-energy radiation sources

Imagine a medical scanner that works faster and produces clearer images, or a radiation detector that pinpoints tiny traces of radioactive material with unprecedented accuracy. These futuristic possibilities are a step closer ...

General Physics May 19, 2025

Small-scale laser systems enable high energy proton accelerator on a table-top

Laser ion acceleration uses intense laser flashes to heat electrons of a solid to enormous temperatures and propel these charged particles to extreme speeds. These have recently gained traction for applications in selectively ...

Bio & Medicine May 13, 2025

Biosensor uses pH-responsive DNA nanoswitches for highly sensitive bladder cancer detection in urine

A study published in ACS Nano presents a novel biosensor for the isothermal, highly sensitive detection of bladder cancer biomarkers—miRNAs, short non-coding RNAs that regulate gene expression—using programmable pH-responsive ...

Nanophysics May 12, 2025

Nanoscale spectroscopy detects vibrational signals from molecules in confined gaps

Vibrational sum-frequency generation (VSFG) is a nonlinear spectroscopic method widely used to investigate the molecular structure and dynamics of surface systems. However, in far-field observations, the spatial resolution ...

Nanomaterials May 12, 2025

Controlling contaminants inside nanopores holds promise for desalination, carbon dioxide storage and porous catalysts

Natural and engineered systems have a whole world of chemistry inside their tiny pores—known as nanopores—that changes depending on the chemical functional groups inside.

Optics & Photonics Apr 30, 2025

Torsion unipolar barrier heterojunction device simplifies optical imaging and sensing

Polarization, along with intensity, wavelength, and phase, is a fundamental property of light. It enhances contrast and resolution in imaging compared to traditional intensity-based methods. On-chip polarization devices rely ...

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