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General Physics May 8, 2023

The realization of a continuous time crystal based on a photonic metamaterial

A time crystal, as originally proposed in 2012, is a new state of matter in which the particles are in continuous oscillatory motion. Time crystals break time-translation symmetry. Discrete time crystals do so by oscillating ...

Nanophysics May 4, 2023

Researchers observe extremely squeezed directional THz waves in thin semiconductor crystals

An international team of scientists has imaged and analyzed THz waves that propagate in the form of plasmon polaritons along thin anisotropic semiconductor platelets with wavelengths reduced by up to 65 times compared to ...

Nanophysics Apr 26, 2023

Scientists improve near-field optical proximity correction via spatial modulation

Researchers led by Prof. Wei Yayi from the University of Chinese Academy of Sciences (UCAS) have improved the final pattern fidelity in near-field nanolithography, a breakthrough in understanding the near-field diffraction ...

Nanophysics Apr 25, 2023

Monolayer hexagonal boron nitride can extend plasmonic enhancement limit

A research team led by Prof. Yang Liangbao from Hefei Institutes of Physical Science, Chinese Academy of Sciences found that hexagonal boron nitride (h-BN) could effectively block electron tunneling and extend the ultimate ...

Bio & Medicine Apr 18, 2023

First rapid test for mpox developed, can be adapted for other emerging diseases

The first rapid test for mpox, more commonly known as monkeypox, has been developed by a team of researchers led by Penn State. The selective molecular sensor can detect the virus within minutes, without the use of any high-end ...

Optics & Photonics Apr 12, 2023

A fiber-tapering technique that combines plasmonic heaters and deformed optical fibers

Optical micro and nanofibers (MNFs) have extensive applications in nonlinearity generation, near-field optics, quantum optics, and miniaturized sensing. Although MNFs have fostered the development of various disciplines, ...

Bio & Medicine Apr 11, 2023

Nanoplasmonic imaging reveals real-time protein secretion

EPFL researchers have used a nanoplasmonics approach to observe the real-time production of cell secretions, including proteins and antibodies; an advancement that could aid in the development of cancer treatments, vaccines, ...

Optics & Photonics Apr 4, 2023

Hot electron electrochemistry with ultrafast laser pulses

Laser-induced electrochemical deposition of metals on metals relies possibly on thermal and defect generation effects. When semiconductor substrates are chosen, locally photogenerated electrons can reduce metal ions resulting ...

Condensed Matter Mar 31, 2023

The modulation of a single-molecule electron source using light

Researchers at University of Tokyo, JTS PRESTO, Ludwig Maximilians Universität and Kindai University recently demonstrated the modulation of an electron source by applying laser light to a single fullerene molecule. Their ...

Nanomaterials Mar 28, 2023

Nano-structured, reusable substrate for ultra-sensitive detection of pollutants

Surface-enhanced Raman scattering (or spectroscopy), known as SERS, is an advanced analysis method that extends the range of Raman applications to trace analysis, such as part-per-million-level detection of a pollutant in ...

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