Ultrafast laser technology continues to surprise. While research in this field may seem rather abstract at first glance, it very often leads to concrete applications. This is particularly true in health care, where the technology ...
Optics & Photonics
Dec 14, 2023
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5
The X-rays used to examine a broken leg in hospital are easy to produce. In industry, however, X-ray radiation of a completely different kind is needed—namely, X-ray laser pulses that are as short and high-energy as possible. ...
Optics & Photonics
Jan 18, 2023
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36
Terahertz (THz) radiation is electromagnetic radiation ranging from frequencies of 0.1 THz to 10 THz, with wavelengths between 30μm and 3mm. Reliably detecting this radiation could have numerous valuable applications in ...
In a scene from "Star Wars: Episode IV—A New Hope," R2D2 projects a three-dimensional hologram of Princess Leia making a desperate plea for help. That scene, filmed more than 45 years ago, involved a bit of movie magic—even ...
Optics & Photonics
Nov 28, 2022
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243
Scientists from Japan have employed theoretical calculations to model the optical radiation force distribution induced by an arbitral light pattern including an interference pattern. Based on the simulations, they were able ...
Optics & Photonics
Sep 28, 2022
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214
Getting atoms to do what you want isn't easy—but it's at the heart of a lot of groundbreaking research in physics.
General Physics
Aug 25, 2022
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12
A special bonding state between atoms has been created in the laboratory for the first time: With a laser beam, atoms can be polarized so that they are positively charged on one side and negatively charged on the other. This ...
Optics & Photonics
Aug 1, 2022
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696
Unlike fictional laser swords, real laser beams do not interact with each other when they cross—unless the beams meet within a suitable material allowing for nonlinear light-matter interaction. In such a case, wave mixing ...
Optics & Photonics
May 20, 2022
2
295
A Lancaster physicist has proposed a radical solution to the question of how a charged particle, such as an electron, responded to its own electromagnetic field.
General Physics
Jan 25, 2022
6
895
The detected intensity from two coherent point-like light sources depends on their relative positions. It is a well-known phenomenon called optical interference. In general, the intensity can range from zero (destructive ...
General Physics
Mar 19, 2021
0
5380
