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.....»»
Researchers solve 20-year-old paradox in solar physics
In 1998, the journal Nature published a seminal letter concluding that a mysterious signal, which had been discovered while analyzing the polarization of sunlight, implies that the solar chromosphere (an important layer of the solar atmosphere) is pr.....»»
Metasurfaces control polarized light at will
For years, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have engineered metasurfaces to manipulate light based on its polarization state. That research has contributed to advances in polarization techno.....»»
Hiwin has strong order visibility
Mechanical motion control component maker Hiwin Technologies has obtained orders for ball screws and linear guideways with shipments scheduled until November-December 2021 and January 2022 respectively, according to company chairman Chuo Wen-hen......»»
Deep learning and holography create a better point-of-care sensor
Agglutination assays are widely used immunological sensors based on antigen-antibody interactions that result in clumping of antibody-coated microscopic particles. Once the sample—for example, a patient's serum—is introduced, the corresponding ta.....»»
Non-linear effects in coupled optical microcavities
Scientists from the Faculty of Physics of the University of Warsaw have demonstrated exciton-polariton lasing and parametric scattering of exciton-polaritons in a system of coupled optical microcavities. The results have been published in the prestig.....»»
Physicists create polarization vortices in a two-dimensional material
A University of Arkansas research team, in conjunction with researchers at the Max Planck Institute of Microstructure Physics and Beijing Academy of Quantum Information Sciences, has discovered polarization vortices in two-dimensional (2D) ferroelect.....»»
Political "couples therapy" could heal a divided America, study finds
Experts know political polarization in the United States is a problem. What they don't know, according to Rob Blair, is what to do about it......»»
Click reaction for living systems: Bioorthogonal hydroamination of activated linear alkynes
Increasing our understanding of cellular processes requires information about the types of biomolecules involved, their locations, and their interactions. This requires the molecules to be labeled without affecting physiological processes (bioorthogo.....»»
Scientists explain the behavior of the optical emission of blazars
Researchers from St. Petersburg University have analyzed data from optical telescopes covering more than eight years and managed to explain the mechanism of polarization plane rotations in blazars......»»
ATLAS experiment measures top quark polarization
Unique among its peers is the top quark—a fascinating particle that the scientific community has been studying in detail since the 90s. Its large mass makes it the only quark to decay before forming bound states (a process known as hadronisation) a.....»»
New high-speed method for spectroscopic measurements
Researchers at Tampere University and their collaborators have shown how spectroscopic measurements can be made much faster. By correlating polarization to the color of a pulsed laser, the team can track changes in the spectrum of light by simple and.....»»
How do social media influence ethnic polarization?
Those who deactivated their Facebook profiles report a lower regard for other ethnic groups, and this effect was more prevalent among people living in more ethnically homogenous areas, shows a new study of users in Bosnia and Herzegovina (BiH). The f.....»»
New Monte Carlo code for solving radiative transfer equations
Recently, YANG Xiaolin and his collaborators from Yunnan Observatories of the Chinese Academy of Sciences developed a new fast code, Lemon (Linear Integral Equations' Monte Carlo Solver Based on Neumann Solution), aiming to solve the radiation transf.....»»
Newspapers can reduce polarization by focusing on local issues
If you're confused about opinion journalism and what it is, you're not alone. Many Americans are. But even so, the editorials, opinion columns and letters to the editor that fill the op-ed pages could help bridge political divides in the U.S. and off.....»»
Thin is now in to turn terahertz polarization
It's always good when your hard work reflects well on you......»»
Rotten Tomatoes Is Launching a Linear Streaming Channel
Rotten Tomatoes is continuing on its quest to grow into something substantially bigger than its Tomatometer movie and TV rating scores. From a report: The website -- owned by NBCUniversal's Fandango -- expands its entertainment footprint with the lau.....»»
Politically polarized brains share an intolerance of uncertainty
Since the 1950s, political scientists have theorized that political polarization—increased numbers of "political partisans" who view the world with an ideological bias—is associated with an inability to tolerate uncertainty and a need to hold pre.....»»
Non-linear optics meets X-rays
The recent advent of femtosecond X-ray sources offers unprecedented opportunities for structural and dynamical studies. It requires, however, manipulating spectral properties, as commonly done by non-linear optics at visible/infrared wavelengths. Her.....»»
Researchers use optical data to reveal the basic structure of spacetime in rotating frames
One of the most basic structural aspects of relativistic spacetime is the description of how time and distances are altered by motion. The theory of special relativity describes a spacetime framework for linear constant motion in which time dilates a.....»»
Hologram experts can now create real-life images that move in the air
They may be tiny weapons, but Brigham Young University's holography research group has figured out how to create lightsabers—green for Yoda and red for Darth Vader, naturally—with actual luminous beams rising from them......»»