Researchers have developed the first fiber laser that can produce femtosecond pulses in the visible range of the electromagnetic spectrum. Fiber lasers producing ultrashort, bright visible-wavelength pulses could be useful ...
Optics & Photonics
Jul 6, 2023
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203
An optical isolator developed at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) could drastically improve optical systems for many practical applications.
Optics & Photonics
Jun 29, 2023
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166
Using a new technique, researchers at the University of Basel have succeeded in cooling a small membrane down to temperatures close to absolute zero using only laser light. Such extremely cooled membranes could, for instance, ...
Optics & Photonics
Jun 26, 2023
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32
Ultrasound is a promising technique for treating cancer. Unlike laser light, used in photodynamic cancer therapy, ultrasound waves can reach deep into tissue—up to 12 cm—to treat deep tumors without damaging healthy cells. ...
Bio & Medicine
Jun 14, 2023
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145
The thorium isotope with the mass number 229 (229Th) is highly exciting in many respects—for fundamental physics as well as for future applications, for example in the sense of a nuclear clock.
General Physics
Jun 1, 2023
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165
Electron microscopes give us insight into the tiniest details of materials and can visualize, for example, the structure of solids, molecules or nanoparticles with atomic resolution. However, most materials in nature are ...
Optics & Photonics
May 31, 2023
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31
3D printers form objects by layering melted plastic or metal, but this only works on large scales. What you need to fabricate microdevices for which the layering step is not feasible? What if it were possible to print directly ...
Optics & Photonics
May 10, 2023
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20
With each breath, humans exhale more than 1,000 distinct molecules, producing a unique chemical fingerprint or "breathprint" rich with clues about what's going on inside the body.
Analytical Chemistry
May 10, 2023
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126
Researchers at SLAC National Accelerator Laboratory captured one of the fastest movements of a molecule called ferricyanide for the first time by combining two ultrafast X-ray spectroscopy techniques. They think their approach ...
Analytical Chemistry
May 5, 2023
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181
Researchers in Germany and the U.S. have shown for the first time that terahertz (THz) light pulses can stabilize ferromagnetism in a crystal at temperatures more than three times its usual transition temperature. As the ...
Condensed Matter
May 4, 2023
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167
