Is it possible to drive nanoparticles to orbit below the light diffraction limit using a Gaussian beam? A recent joint research project reported in Nature Communications says yes.
Quantum Physics
Jun 17, 2021
0
12
New research shows how to measure the super-short bursts of high-frequency light emitted from free electron lasers (FELs). By using the light-induced ionization itself to create a femtosecond optical shutter, the technique ...
Optics & Photonics
Apr 14, 2021
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192
Laser-induced breakdown spectroscopy (LIBS) is a rapid chemical analysis tool. A powerful laser pulse is focused on a sample to create a microplasma. The elemental or molecular emission spectra from that microplasma can be ...
Optics & Photonics
Jan 28, 2021
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9
Researchers from CAS Key Laboratory of Quantum Information of the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences have demonstrated on-demand storage of photonic qubits in an integrated ...
General Physics
Jan 8, 2021
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307
Femtosecond hard X-ray pulses are an important tool for unraveling structure changes of condensed matter on atomic length and time scales. A novel laser-driven X-ray source provides femtosecond copper Kα pulses at a 1 kHz ...
Optics & Photonics
Jan 7, 2021
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48
Nonlinear photonic crystals (NPCs) are transparent materials that have a spatially uniform linear susceptibility, yet a periodically modulated quadratic nonlinear susceptibility. These engineered materials are used extensively ...
Optics & Photonics
Dec 2, 2020
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6
Our eyes are sensitive to only three spectral color bands (red, green, blue), and people can no longer distinguish colors if it becomes very dark. Spectroscopists can identify many more colors by the frequencies of the light ...
Optics & Photonics
Oct 20, 2020
1
1164
Scientists at the Department of Energy's Oak Ridge National Laboratory and the University of Nebraska have developed an easier way to generate electrons for nanoscale imaging and sensing, providing a useful new tool for material ...
Optics & Photonics
Sep 14, 2020
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73
Water molecules undergo ultrafast dithering motions at room temperature and generate extremely strong electric fields in their environment. New experiments demonstrate how in presence of such fields free electrons are generated ...
Materials Science
Sep 2, 2020
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8
An ultrathin optical lens made from a monolayer of two-dimensional transition metal dichalcogenides (TMDCs) could pave the way for next-generation imaging devices. An international team of researchers, led by Prof. Baohua ...
Optics & Photonics
Aug 14, 2020
0
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