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.....»»
On-surface synthesis of carbyne: An sp-hybridized linear carbon allotrope
In a study led by Prof. Wei Xu (Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University) and published in the journal National Science Review, a research team achieved the successful synthesis of a.....»»
Advancing real-time 3D holographic display: A new method for computer-generated holography
Holographic displays offer a promising avenue for achieving lifelike 3D reproductions with continuous depth sensation, holding potential applications in fields such as entertainment, medical imaging, and virtual reality. However, the conventional met.....»»
Tesla’s $25,000 car means tossing out Henry Ford"s 100-year-old assembly line
Instead of a large, rectangular car moving along a linear conveyer belt, parts are assembled simultaneously in dedicated areas and then all put together at the end......»»
Using polarization to improve quantum imaging
Quantum imaging is a growing field that takes advantage of the counterintuitive and "spooky" ability of light particles, or photons, to become linked, or entangled, under specialized circumstances. If the state of one photon in the entangled duo gets.....»»
Polarization-sensitive tomography made easy with tensorial tomographic Fourier ptychography
In the realm of medical imaging, there are quite a few different techniques to extract information from biological tissue based on its different interactions with visible light. Over the past decade, there has been a massive surge in research focusin.....»»
Image: Barchan and linear dunes on Mars
On Jan. 16, 2020, the Mars Reconnaissance Orbiter (MRO) captured this image of two types of sand dunes on Mars: barchan and linear dunes......»»
Novel method for controlling light polarization uses liquid crystals to create holograms
Researchers have made a significant breakthrough in controlling the polarization of light, a crucial property for various applications such as augmented reality, data storage, and encryption......»»
Novel method improves Fourier transform infrared spectroscopy detection of ultra-low concentration trace substances
Recently, a research team led by Prof. Gao Minguang and Associate Prof. Li Xiangxian from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS) has developed a spectral resolution enhancement method based on linear predictio.....»»
Researchers use liquid crystals to control polarization inside laser-written waveguides
Researchers have developed a new way to control and manipulate optical signals by embedding a liquid crystal layer into waveguides created with direct laser writing. The new devices enable electro-optical control of polarization, which could open new.....»»
Double trouble at chromosome ends: New study alters our understanding of telomere biology
Half a century ago, scientists Jim Watson and Alexey Olovnikov independently realized that there was a problem with how our DNA gets copied. A quirk of linear DNA replication dictated that telomeres that protect the ends of chromosomes should have be.....»»
Making it personal: Considering an issue"s relevance to your own life could help reduce political polarization
Political polarization can be reduced when people are told to think about the personal relevance of issues they might not care about at first glance......»»
Report finds most Americans do not support partisan violence
Despite political chatter about a new civil war, Americans' support for partisan violence remains very low, according to a new report issued by the Polarization Research Lab......»»
Compulsory voting can reduce political polarization in the US, study finds
Introducing compulsory voting in the United States and other majoritarian democracies, with meaningful and enforceable penalties for abstention, has the potential to reduce political polarization and protect democratic institutions from anti-democrat.....»»
Study shows promise of transceiver-based sensing for active monitoring of fiber networks
Researchers have successfully used a coherent transceiver prototype to detect polarization changes that preceded a cable break in a live network. The work, which is one of the first demonstrations of field-based measurements for an active cable break.....»»
Physicists develop novel concept for detecting chiral molecules
In contrast to conventional mirrors, light can be reflected on surfaces known as metasurfaces without changing its polarization. This phenomenon has now been proven by physicists at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and the Ma.....»»
Political polarization may slow legislation, make higher-stakes laws likelier
The United States House of Representatives held more than 700 votes in 2023, but fewer than 30 bills were signed into law. Partisan politics may explain why, with polarization potentially causing enough friction to slow down the legislative process a.....»»
Disinformation may reinforce polarization in society
With over 4 billion people eligible to vote in elections, 2024 is the largest election year ever. At the same time, disinformation and polarization on social media pose unprecedented challenges to the democratic process......»»
Performing complex-valued linear transformations using spatially incoherent diffractive optical networks
The bulk of the computing in state-of-the-art neural networks comprises linear operations, e.g., matrix-vector multiplications and convolutions. Linear operations can also play an important role in cryptography. While dedicated processors such as GPU.....»»
New technique uses optical orbital angular momentum lattice to enhance information storage capacity
In the realm of optical holography, the conventional limitations of polarization, wavelength, and incident angle are giving way to a new era of possibilities. A breakthrough technique known as optical orbital angular momentum (OAM) multiplexing has e.....»»
Anisotropic plasmon engineering unlocks multilevel polarized upconversion
National University of Singapore (NUS) researchers have introduced an upconversion plasmonphore platform to enable precise control over the polarization of isotropic upconversion nanoparticles (UCNPs). This is achieved by coupling upconversion activa.....»»