Articles tagged with Holography
NC State University researchers developed techniques to create ideal geometric phase holograms for any type of optical pattern. These holograms can focus, disperse or modify light efficiently. The breakthrough enables creation of new displays, imaging systems, telecommunications technology and astronomical instruments.
A team of researchers has created a working sonic tractor beam that uses high-amplitude sound waves to generate an acoustic hologram, allowing them to lift and move small objects. The technique could be developed for applications such as transporting delicate objects or gripping drug capsules through living tissue.
Researchers have obtained the first nanometer-resolved image of individual tobacco mosaic virions using low-energy electron holography, a non-destructive single-particle imaging technique. This breakthrough could lead to improved drug design by providing detailed knowledge of biomolecular structures.
Physicist Samir Mathur proposes that the surface of a black hole is not a fiery firewall but rather a benign copy machine creating an imperfect hologram. This idea counters the prevailing firewall theory and has significant implications for our understanding of the universe as a hologram.
Researchers at Griffith University and their international consortium have made significant progress in creating wide-angle and full-color 3D images using graphene. The sub-wavelength feature size allows for static holographic 3D images with a wide viewing angle, revolutionizing capabilities across various optical and electronic devices.
Recent advances in voltage-sensitive dye imaging have paved the way for real-time functional imaging of live tissue electrical activity. Research by Larry Cohen and his team has enabled this frontier field, with recent articles demonstrating its legacy.
A new Yale-developed laser reduces speckle contrast in full-field imaging, enabling brighter and clearer images. The technology combines traditional laser brightness with LED-like properties, addressing a significant barrier in biomedical imaging and microscopy.
Researchers at the University of Bristol have developed a new acousto-optic device that can shape and steer light beams at speeds never before achieved. The device, which consists of 64 tiny piezo-electric elements, can create complex sound fields that deflect and sculpt light passing through it.
Researchers from St. Petersburg State University developed a theoretical model for quantum memory in light, adapting classical hologram concepts to a quantum system. They demonstrated the possibility of retrieving specific portions of stored quantized light signals with precise control over space and time.
Scientists use the most sensitive device ever created to measure the quantum jitter of space itself, probing the limits of the universe's ability to store information. The Holometer experiment could reveal whether we live in a holographic universe with 2-D encoded information.
Researchers at Tel Aviv University have developed a new holography technology based on nanoantennas, enabling dynamic and complex three-dimensional projections without replotted images. The technology has vast applications in security, medical, recreational, and scientific research.
A team of researchers from the University of California, Riverside has demonstrated a new type of holographic memory device that uses spin waves to store data. The device has unprecedented data storage capacity and processing capabilities, making it potentially revolutionary for electronic devices.
Researchers have developed a new tracking system that takes 3-D movies of living sperm, providing detailed imaging and analyzing motility data. The method helps detect potential infertility-causing anomalies, such as bent tails, and may soon aid in vitro fertilization (IVF) clinics in selecting the most viable sperm cells.
Researchers from the University of Cambridge have developed portable, inexpensive medical tests using color-changing 'smart' holograms that can detect a wide range of compounds in blood, breath, urine, saliva or tear fluid.
Researchers have developed a new holographic process that utilizes an image-stabilized X-ray camera to improve imaging efficiency and resolution. The method, which uses a Fresnel zone plate to increase brightness, enables the study of fast dynamic processes at the nanoscale.
Researchers at Purdue University have developed a new hologram technology using tiny nanoantennas that can control light with unprecedented efficiency. The metasurface, thousands of V-shaped nanoantennas, enables the creation of ultra-efficient devices for sensing, displays and information processing.
Researchers have created a small holographic projection system with a lensless zoom function, enabling compact and cost-effective projectors. The new technology reduces calculation time and preserves image quality, making it suitable for applications such as presentations and displays.
Researchers at Harvard University have developed a nanostructured hologram that controls the intensity, phase, and polarization of light rays. This innovation enables the creation of radially polarized beams, which are crucial for high-resolution lithography and particle manipulation.
The new mathematical model by Professor Kostas Skenderis links flat space-time to negatively curved space-time, governed by laws similar to electromagnetism. The research aims to find a combined understanding of the Universe, combining individual theories to describe its nature.
A new imaging technique using infrared digital holography allows firefighters to see through thick veils of smoke and walls of flame to find people in need of rescue. The system can capture a live, 3-D movie of the room and its contents, enabling the detection of moving people.
Kostas Skenderis, a University of Southampton professor, has been awarded a $175,000 grant to investigate the laws of physics at the beginning of time and space. He aims to combine Einstein's theory with quantum physics to develop a new holographic theory for the early universe.
Researchers mapped ferroelectric structural distortions in individual nanocrystals using the world's most powerful transmission electron microscope. The study indicates that a monodomain ferroelectric state remains stable down to dimensions of less than 10 nanometers, and room-temperature polarization flipping was demonstrated down to ...
Researchers at Queen's University have developed TeleHuman, a life-size 3D videoconferencing pod that allows people to interact with each other in a Star Trek-like holodeck environment. The technology uses existing hardware and can be used for interactive 3D anatomy exploration through BodiPod.
The Focus Issue on Digital Holography and 3-D Imaging presents recent breakthroughs in digital holography, enabling non-invasive biomedical imaging and applications in structural analysis. Novel techniques such as compressive holography and lens-free tomographic microscopy are showcased, advancing 3-D display technologies.
The Marine Science Institute has received a $7 million grant to study the impact of the Deepwater Horizon spill on the Gulf of Mexico ecosystem. The research will focus on understanding how oil disperses in the Gulf and its effects on marine life.
Researchers at NYU have created a new method for generating extended and knotted optical traps in three dimensions using computer-generated holograms. This breakthrough could lead to advancements in fusion energy and medical diagnostics, enabling the manipulation of small objects in complex 3D environments.
Researchers at Helmholtz Association create ultrafast image sequences of nanostructures, enabling real-time observation of molecules and nanostructures. The breakthrough method uses X-ray pulses to capture images at femtosecond intervals, paving the way for new insights into fundamental processes in natural sciences.
A team at the University of Arizona has developed a new type of holographic telepresence that can project three-dimensional, moving images in real-time. This breakthrough technology enables applications such as telemedicine, advertising, and entertainment to take on new levels.
A team of physicists from Bristol, Glasgow and Southampton universities have successfully created knots in optical vortices using holograms designed with knot theory. This new research demonstrates the physical application of an abstract branch of mathematics previously considered impossible to apply.
Researchers develop new imaging method using nonlinear crystals, allowing for data encryption and higher resolution images. The technique enables capture of wide-view photos with high resolution, promising applications in various fields including optical systems, microscopes, and dynamical imaging.
Researchers encoded letters 'S' and 'U' in interference patterns formed by quantum electron waves, creating a tiny hologram that can be viewed with a microscope. The achievement paves the way for storing more information in less space, challenging the assumption of atomic limits
Researchers at Purdue University developed a technique using laser and holograms to precisely position numerous tiny particles within seconds. This potential new tool can analyze biological samples or create devices using nanoassembly.
An international team produced two of the brightest, sharpest x-ray holograms of microscopic objects ever made, with resolutions of up to 50 nanometers. The technique used is called massively parallel x-ray Fourier-transform holography with 'coded apertures', inspired by the pinhole camera.
The FINCH technology enables the acquisition of 3D microscopic images without scanning multiple planes, making it faster and more accurate. This innovation has potential applications in medical fields such as endoscopy and ophthalmology, as well as Homeland Security screening and 3D photography.
Researchers at the University of Arizona have created updatable three-dimensional holographic displays that can be erased and rewritten in a matter of minutes. These devices have potential applications in medicine, industry, and military fields, such as tracking progress during surgeries or showing hazards to pilots.
Smart holograms can detect changes in blood-glucose levels, adrenaline levels, and other chemical imbalances, enabling patients to monitor their health more effectively. This new technology has wide applicability in various fields, including diabetes management, security, and smart packaging systems.
Researchers developed a one-step test using holograms to diagnose astigmatic error, a key factor in prescribing glasses. The new technique is simpler and faster than traditional methods, which involve multiple lenses and complex processes.
Researchers at Purdue University have developed a digital holographic imaging system that uses laser light to observe the effects of an anticancer drug on living tissue. The system detects changes in organelle motion within cancer cells, resulting in reduced shimmer and improved diagnostic capabilities.
Researchers developed a virtual reality system using 3D echocardiography to analyze heart defects. Ten heart specialists successfully diagnosed healthy and unhealthy hearts within minutes, showcasing the technology's potential for better understanding cardiac anatomy.
A new lensless imaging technique has been demonstrated, allowing for direct imaging of ultra-fast changes in the collective behavior of atoms and molecules at the nanoscale. The technique uses coherent X-ray light to achieve 10 times better spatial resolution than current methods.
A new company, SafeView Inc., has licensed technology from the Department of Energy's Pacific Northwest National Laboratory to detect hidden plastic and ceramic weapons. The system uses millimeter waves to generate holographic images that allow operators to screen for suspicious materials.
The technique uses optical coherence imaging to take real-time video of the insides of tumors, revealing their internal structure. This allows for interactive viewing of living tissues, such as tumors, and enables scientists to study how they behave in real time.