A soccer player can kick a static ball on its side, forcing the ball to rotate and travel in an arc trajectory, left or right curved, depending on the ball's rotation sense. This requires skill/experience. And if the ball ...
Optics & Photonics
Oct 18, 2023
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8
An optical spectrometer is an instrument used to measure properties of light over a specific portion of the light spectrum. These devices have found a wide range of practical applications. Dispersive optical elements (e.g., ...
Optics & Photonics
May 8, 2023
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5
Researchers have designed and demonstrated two all-silicon terahertz metasurface devices that can be used to create four optical channels for simultaneously implementing different optical functions. This capability could ...
Optics & Photonics
Mar 1, 2023
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90
In biological imaging, researchers aim to achieve 3D, high-speed, and high-resolution, with low photobleaching and phototoxicity. The light-sheet fluorescence microscope (LSFM) helps meet that aim. Based on a unique excitation ...
Optics & Photonics
Dec 5, 2022
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7
The international collaboration developing the Prime Focus Spectrograph (PFS) has marked a significant testing milestone by successfully taking spectra of targeted stars.
Astronomy
Nov 11, 2022
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40
While telescope alignment continues, the James Webb Space Telescope's Mid-Infrared Instrument (MIRI) is still in cooldown mode. MIRI, which will be the coldest of Webb's four instruments, is the only instrument that will ...
Space Exploration
Mar 24, 2022
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80
When the Vera C. Rubin Observatory starts taking pictures of the night sky in a few years, its centerpiece 3,200 megapixel Legacy Survey of Space and Time camera will produce an enormous trove of data valuable to everyone ...
Astronomy
Mar 10, 2022
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35
The type-II band structures in vertically stacked transition metal dichalcogenides (TMDs) heterobilayers facilitate the formation of interlayer excitons. The twist-angle and the mismatch in the lattice constants of the monolayers ...
Nanomaterials
Oct 20, 2021
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5
Crews at the Department of Energy's SLAC National Accelerator Laboratory have taken the first 3,200-megapixel digital photos—the largest ever taken in a single shot—with an extraordinary array of imaging sensors that ...
Astronomy
Sep 8, 2020
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4059
Since 2005, scientists have been scanning the night sky to create a three-dimensional map of our universe with the purpose of shedding light on one of the biggest mysteries in physics: the nature and identity of dark energy ...
Astronomy
Jul 7, 2020
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