Linear polarization holography
In conventional holography, the hologram is formed by recording the interference fringes of two coherent beams using a photosensitive material. The amplitude and phase information of the original signal wave can be reconstructed correctly when readin.....»»
Deep dive into Meta"s algorithms shows that America"s political polarization has no easy fix
The powerful algorithms used by Facebook and Instagram to deliver content to users have increasingly been blamed for amplifying misinformation and political polarization. But a series of groundbreaking studies published Thursday suggest addressing th.....»»
Did Facebook fuel political polarization during the 2020 election? It’s complicated.
There's strong ideological segregation, but proposed interventions didn't change attitudes. Enlarge (credit: Getty Images | Aurich Lawson) Over the last several years, there have been growing concerns about the influence.....»»
Enhancing image quality with broadband achromatic and polarization-insensitive metalenses
Precise control of light is a crucial requirement in optical imaging, sensing, and communication. Traditional lenses employed for the purpose have limitations, necessitating more precise and compact solutions. To address this need, researchers have d.....»»
Catching up with Foundation S2 as the Second Crisis unfolds
The second season has faster pacing, more linear storytelling, and bits of levity. Enlarge / Lee Pace as the latest incarnation of Brother Day, one of a trio of ruling Cleons in Apple TV's Foundation. (credit: Apple TV+).....»»
On-chip infrared circular polarization detector with ultrahigh discrimination
Polarization, as a primary physical quantity of light, is of great interest to almost all optical sciences and technologies. Along with linear polarization detection, circular polarization (or light ellipticity) detection is essential for chiral mole.....»»
Immigration polarizes the right, and climate change polarizes the left: Study reveals Europe"s fault lines
The analysis of a representative survey conducted in ten European countries shows that affective polarization is at its greatest when it comes to "climate change" and "immigration.".....»»
Razer undergoes desertification with its new PUBG: BATTLEGROUND collection
Razer's PUBG collab includes three of its best peripherals, like the lightning-fast Huntsman V2 Linear Optical Switch keyboard......»»
Orbital angular momentum boosts multiplexed holography
Optical holography is a powerful method for recording and reconstructing complete optical field information, including intensity and phase. It has found extensive applications in various fields, such as optical display, imaging, data storage, encrypt.....»»
Novel spectroscopic technique for exploring relaxor–ferroelectric materials
The exploitation of polarization or charge separation in ferroelectric materials has led to remarkable advances in various fields, such as the development of new ultrasound diagnostic devices. Prominently, these ferroelectric materials have led to pi.....»»
Direct photons point to positive gluon polarization
A new publication by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC) provides definitive evidence that gluon "spins" are aligned in the same direction as the spin of the proton they're in. The result, just published in Physical.....»»
Midgut gland of scallops: A valuable source of fucosylated heparan sulfate
Glycosaminoglycans (GAGs), including chondroitin sulfate (CS), heparan sulfate (HS), heparin, and hyaluronan are linear and acidic polysaccharides found in the extracellular matrix of all animal tissues. GAGs are widely used as functional ingredients.....»»
Spectropolarimetric imaging: A magical way to get multidimensional information
In the world of optics, capturing high-dimensional optical information is crucial for understanding and characterizing various targets across different scenes. This includes important aspects like irradiance, spectrum, space, polarization, and phase......»»
Scientists" political donations reflect polarization in academia—with implications for the public"s trust in science
People who lean left politically reported an increase in trust in scientists during the COVID-19 pandemic, while those who lean right politically reported much lower levels of trust in scientists. This polarization around scientific issues—from COV.....»»
Why our news consumption might be more worrisome than misinformation
Misinformation and echo chambers are often used to explain polarization and political divides between people. New research, however, finds there is another factor we should worry about, namely our online consumption of quality news, or exactly the la.....»»
Taiwanese suppliers cautious toward smartphone-to-satellite communication
With Starlink and satellite communication network growing in popularity and importance, Taiwan-based low-earth orbit (LEO) system integrators observed that the LEO satellite sector is not experiencing exponential growth, but linear growth. Neverthele.....»»
Polychromatic full-polarization control in mid-infrared light
Mid-wavelength infrared (MWIR) as one of the most important transparent atmosphere windows is less sensitive to interference from the background emission of the sun, providing a high-transmission zone for the finger-print spectra of various materials.....»»
Researchers develop clever algorithm to improve our understanding of particle beams in accelerators
Whenever SLAC National Accelerator Laboratory's linear accelerator is on, packs of around a billion electrons each travel together at nearly the speed of light through metal piping. These electron bunches form the accelerator's particle beam, which i.....»»
3D Printing Linear Actuators
3D Printing Linear Actuators.....»»
A general theory to realize bilayer stacking ferroelectricity
Two-dimensional (2D) ferroelectrics, planar materials that have a spontaneous and reversible electric polarization, are extremely rare and yet could be extremely advantageous for the development of new nanoelectronics. Due to their ferroelectric prop.....»»
New approach to developing efficient, high-precision 3D light shapers
Modern-day technologies like optical computing, integrated photonics, and digital holography require light signals to be manipulated in three dimensions. To achieve this, it is necessary to be able to shape and guide the flow of light according to it.....»»