Recent technological advances have given us a remarkable ability to manipulate and control light waves, opening up numerous applications in various fields, such as optical communication, sensing, imaging, energy, and quantum ...
Optics & Photonics
May 23, 2023
0
209
After a three-year hiatus, scientists in the U.S. have just turned on detectors capable of measuring gravitational waves—tiny ripples in space itself that travel through the universe.
Astronomy
May 23, 2023
3
59
NASA's Spitzer Space Telescope served the astronomy community well for 16 years. From its launch in 2003 to the end of its operations in January 2020, its infrared observations fueled scientific discoveries too numerous to ...
Astronomy
May 19, 2023
2
51
In everyday life we experience light in one of its simplest forms—optical rays or beams. However, light can exist in much more exotic forms. Thus, even beams can be shaped to take the form of spirals; so-called vortex beams, ...
Nanophysics
May 17, 2023
0
141
The theory of relativity works well when you want to explain cosmic-scale phenomena—such as the gravitational waves created when black holes collide. Quantum theory works well when describing particle-scale phenomena—such ...
Quantum Physics
May 17, 2023
8
1077
The BlackGEM array, consisting of three new telescopes located at ESO's La Silla Observatory, has begun operations. The telescopes will scan the southern sky to hunt down the cosmic events that produce gravitational waves, ...
Astronomy
May 16, 2023
0
59
Researchers at Columbia Engineering have developed a new class of integrated photonic devices—"leaky-wave metasurfaces"—that can convert light initially confined in an optical waveguide to an arbitrary optical pattern ...
Nanophysics
May 8, 2023
0
67
Gravitational wave astronomy is still in its early stages. So far it has focused on the most energetic and distinct sources of gravitational waves, such as the cataclysmic mergers of black holes and neutron stars. But that ...
Astronomy
Apr 28, 2023
0
48
Two massive touching stars in a neighboring galaxy are on course to become black holes that will eventually crash together, generating waves in the fabric of space-time, according to a new study by researchers at UCL (University ...
Astronomy
Apr 27, 2023
1
226
High-frequency light is useful. The higher the frequency of light, the shorter its wavelength—and the shorter the wavelength, the smaller the objects and details the light can be used to see.
Nanophysics
Apr 27, 2023
0
16
