Holography, like photography, is a way to record the world around us. Both use light to make recordings, but instead of two-dimensional photos, holograms reproduce three-dimensional shapes. The shape is inferred from the ...
Optics & Photonics
Mar 8, 2018
1
552
ESA's Integral space observatory has been orbiting Earth for 15 years, observing the ever-changing, powerful and violent cosmos in gamma rays, X-rays and visible light. Studying stars exploding as supernovas, monster black ...
Space Exploration
Nov 20, 2017
0
15
X-rays interact weakly with matter. This is their greatest strength for many applications, but also a fundamental weakness for others. In particular the fields of nonlinear optics and quantum optics, mainstays for both fundamental ...
Optics & Photonics
Oct 26, 2017
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7
Researchers have discovered a highly efficient way to produce high energy photon beams. The obtained energy is a billion times higher than the energy of photons in visible light. These high-intensity gamma rays significantly ...
Optics & Photonics
Oct 20, 2017
2
77
On Aug. 17, 2017, weak ripples in the fabric of space-time known as gravitational waves washed over Earth. Unlike previously detected gravitational waves, these were accompanied by light, allowing astronomers to pinpoint ...
Astronomy
Oct 18, 2017
35
92
(Phys.org)—In 2011, mathematicians Alexander Plakhov and Vera Roshchina proved that objects with mirror surfaces cannot be perfectly invisible. Now in a new study, Plakhov has returned to the problem, asking just how close ...
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole behind. For a long time, scientists have suspected that the liberated ...
Optics & Photonics
Sep 16, 2017
1
492
By reproducing the complexity of the cosmos through unprecedented simulations, a new study highlights the importance of the possible behaviour of very high-energy photons. In their journey through intergalactic magnetic fields, ...
General Physics
Sep 8, 2017
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17
Dutch giant Royal Philips announced plan Thursday to build a health technology center in Tennessee that officials expect will create more than 800 jobs in the Nashville area over the next two years.
Business
Aug 24, 2017
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3
Physicists from Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Deutsches Elektronen-Synchrotron (DESY, Hamburg) have developed a method to improve the quality of X-ray images over conventional methods. The ...
Optics & Photonics
Aug 15, 2017
0
1
