Current Hologram News and Events

Current Hologram News and Events, Hologram News Articles.
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Edible holograms could someday decorate foods
Holograms are everywhere, from driver's licenses to credit cards to product packaging. And now, edible holograms could someday enhance foods. Researchers reporting in ACS Nano have developed a laser-based method to print nanostructured holograms on dried corn syrup films. The edible holograms could also be used to ensure food safety, label a product or indicate sugar content, the researchers say. (2021-02-17)

Move over heavy goggles, here come the ultra-high refractive index lenses
POSTECH professor Junsuk Rho's research team develops a transparent silicon without visible light loss by controlling the silicon atomic structure. (2021-02-14)

Sub-surface imaging technology can expose counterfeit travel documents
New research by the University of Kent has found that optical coherence tomography (OCT) imaging technology can be utilised to distinguish between legitimate and counterfeit travel documents. (2021-02-02)

High-speed holographic fluorescence microscopy system with submicron resolution
The National Institute of Information and Communications Technology (NICT), Tohoku University, Toin University of Yokohama, and Japan Science and Technology Agency (JST) have succeeded in developing a scanless high-speed holographic fluorescence microscopy system with submicron resolution for a 3D space. The system is based on digital holography. The developed microscopy system has an algorithm to acquire 3D information of fluorescent objects toward scanless 3D measurement in less than 1 millisecond. (2021-01-29)

Improvements to holographic displays poised to enhance virtual and augmented reality
Researchers have developed a new approach that improves the image quality and contrast for holographic displays. The new technology could help improve near-eye displays used for virtual and augmented reality applications. (2021-01-28)

An ultrasonic projector for medicine
A chip-based technology that modulates intensive sound pressure profiles with high resolution opens up new possibilities for ultrasound therapy. (2020-10-19)

Instantaneous color holography system for sensing fluorescence and white light
The National Institute of Information and Communications Technology (NICT), the Japan Science and Technology Agency (JST), Toin University of Yokohama, and Chiba University have succeeded in developing a color-multiplexed holography system by which 3D information of objects illuminated by a white-light lamp and self-luminous specimens are recorded as a single multicolor hologram by a specially designed and developed monochrome image sensor. (2020-07-22)

Electrically focus-tuneable ultrathin lens for high-resolution square subpixels
In accordance to rising demand of high-resolution, ultrathin lens device for display panels, the scientists from Korea, UK, and USA have invented an electrically focus-tunable, graphene-based ultrathin subpixel square lens device that demonstrates excellent focusing performance. Such subpixel design is uniquely developed to control the optical path of subpixels of display in visible wavelength, which is therefore easily applicable to high-resolution slim displays as an add-on feature. Ultimately, this presents new directionality to autostereoscopic display. (2020-07-06)

Study demonstrates feasibility of hologram technology in liver tumor ablation
Data from one of the first clinical uses of augmented reality guidance with electromagnetically tracked tools shows that the technology may help doctors quickly, safely, and accurately deliver targeted liver cancer treatments, according to a research abstract presented during a virtual session of the Society of Interventional Radiology's 2020 Annual Scientific Meeting on June 14. (2020-06-15)

Lightning fast algorithms can lighten the load of 3D hologram generation
Tokyo, Japan - Researchers from Tokyo Metropolitan University have developed a new way of calculating simple holograms for heads-up displays (HUDs) and near-eye displays (NEDs). The method is up to 56 times faster than conventional algorithms and does not require power-hungry graphics processing units (GPUs), running on normal computing cores like those found in PCs. This opens the way to developing compact, power-efficient, next-gen augmented reality devices, including 3D navigation on car windshields and eyewear. (2020-06-06)

Black holes? They are like a hologram
Spherical, smooth and simple according to the theory of relativity, or extremely complex and full of information as, according to quantum laws, Stephen Hawking used to say? There is no single answer on how to describe these mysterious cosmic objects. New research now proposes a surprising solution to the dilemma: black holes 'appear' as three dimensional, just like holograms. The study which demonstrates it, and which unites two discordant theories, is by SISSA, ICTP and INFN. (2020-06-03)

A thin lensless camera free of noise
Scientists from Tsinghua University in China and MIT in the US report that applying a compressive sensing algorithm can significantly improve the quality of lensless imaging. Their thin lensless camera consists of a Fresnel optical element placed three millimeters in front of a CMOS image sensor. The signal recorded by the CMOS sensor is then reconstructed by the advanced algorithm to generate an improved image of the object free of noise. (2020-05-26)

VR and AR devices at 1/100 the cost and 1/10,000 the thickness in the works
Professor Junsuk Rho of the departments of mechanical engineering and chemical engineering and doctoral student in mechanical engineering Gwanho Yoon at POSTECH with the research team at Korea University have jointly developed moldable nanomaterials and a printing technology using metamaterials, allowing the commercialization of inexpensive and thin VR and AR devices. (2020-05-19)

Accurate 3D imaging of sperm cells moving at top speed could improve IVF treatments
Tel Aviv University (TAU) researchers have developed a safe and accurate 3D imaging method to identify sperm cells moving at a high speed. The new method has the potential to significantly improve IVF treatments. (2020-05-07)

Seeing with electrons: Scientists pave the way to more affordable and accessible cryo-EM
In recent years, a powerful technology called cryogenic electron microscopy (cryo-EM), where flash-frozen samples are embedded in glass-like ice and probed by an electron beam, has revolutionized biomolecule imaging. However, the microscopes used are prohibitively expensive and complicated to use. Now, scientists from the Okinawa Institute of Science and Technology Graduate University (OIST) have developed a cheaper and more user-friendly cryo-electron microscope, which could put cryo-EM in reach of thousands of labs. (2020-03-17)

Witnessing the birth of baby universes 46 times: The link between gravity and soliton
Scientists have been attempting to come up with an equation to unify the micro and the macro laws of the universe; quantum mechanics and gravity. We are one step closer with the paper that demonstrates that this unification is successfully realized in JT gravity. In the simplified toy model of the one dimensional domain, the holographic principle or how information is stored on a boundary that manifests in another dimension is revealed. (2020-02-27)

As seen in movies, new meta-hologram can be used as a communication tool
Junsuk Rho and his research team developed a multiplexed meta-hologram device operating at visible light. The newly developed technique can transmit information to multiple users from different locations. This can be employed in many hologram applications such as performance, exhibitions, automobiles and more. (2020-01-28)

CUHK Faculty of Engineering develops novel imaging approach
By combining a compressive sensing algorithm with a digital holographic microscope, Prof. Shih-Chi CHEN of the Department of Mechanical and Automation Engineering, Faculty of Engineering, The Chinese University of Hong Kong (CUHK) and his research team have developed a high-speed imaging method. The new approach is able to produce two-photon microscopy images of a 3D sample in one second, which is at a speed three to five times that of the conventional point-scanning method. (2019-11-21)

New printer creates extremely realistic colorful holograms
Researchers have developed a new printer that produces digital 3D holograms with an unprecedented level of detail and realistic color. The new printer could be used to make high-resolution color recreations of objects or scenes for museum displays, architectural models, fine art or advertisements that do not require glasses or special viewing aids. (2019-11-01)

Computational approach speeds up advanced microscopy imaging
Researchers have developed a way to enhance the imaging speed of two-photon microscopy up to 5 times without compromising resolution. This record-fast imaging speed will allow scientists to observe biological phenomena that were previously too fleeting to image with current state-of-the-art advanced microscopy. (2019-08-27)

3D holograms bringing astronomy to life
Scientists unravelling the mysteries of star cluster formation have taken inspiration from a 19th century magic trick, to help explain their work to the public. Researchers from the University of Leeds have developed 3D holograms that allow people to watch massive stars forming before their eyes and will be demonstrating their work at the Royal Astronomical Society's National Astronomy Meeting on July 2, 2019. (2019-07-01)

Researchers find quantum gravity has no symmetry
Using holography, researchers have found when gravity is combined with quantum mechanics, symmetry is not possible. (2019-06-19)

New holographic technique opens the way for quantum computation
EPFL physicists have developed a method based on the principles of holograms to capture 3D images of objects beyond the reach of light. (2019-05-03)

New 3D printed microscope promising for medical diagnostics in developing countries
Researchers have used 3D printing to make an inexpensive and portable high-resolution microscope that is small and robust enough to use in the field or at the bedside. The high-resolution 3D images provided by the instrument could potentially be used to detect diabetes, sickle cell disease, malaria and other diseases. (2019-04-29)

Quality of laser beam shaping can be enhanced at no extra cost
Researchers from Osaka University developed a technique for improving accuracy of laser beam shaping and wavefront obtained by conventional methods with no additional cost by optimizing virtual phase grating. (2019-04-23)

A hole in one for holographic display
Researchers in Korea have designed an ultra-thin display that can project dynamic, multi-colored, 3D holographic images, according to a study published in Nature Communications. (2019-04-18)

Deep learning merges advantages of holography and bright-field microscopy for 3D imaging
Researchers at UCLA have developed an artificial neural network-based 3D imaging method, termed Bright-field Holography, which combines the image contrast advantage of bright-field microscopy and the snapshot volumetric imaging capability of holography. This data-driven deep-learning-based imaging method bridges the contrast gap between coherent and incoherent imaging systems and enables the snapshot 3D imaging of objects with bright-field contrast from a single hologram. (2019-03-06)

Manipulating cell networks with light -- New frontiers in optical microscopy
A new optical microscope system called SIFOM (Stimulation and Imaging-based Functional Optical Microscopy) can stimulate multiple cells simultaneously by a holographic method and monitor cell activity after the stimulation using 3D (three-dimensional) measurements based on fluorescence holography. This system has potential applications as a tool for the reconstruction of lost nerve pathways, constructing artificial neural networks, and food resources development. (2019-01-28)

Multicolor holography technology could enable extremely compact 3D displays
Researchers have developed a new approach to multicolor holography that could be used to make 3D color displays for augmented reality glasses, smartphones or heads-up displays without any bulky optical components. (2019-01-24)

Holographic color printing for optical security
Researchers from the Singapore University of Technology and Design (SUTD) have invented a new type of anti-counterfeiting device that can be useful for counterfeit deterrence of important documents such as identity cards, passports and banknotes. (2019-01-08)

Shedding a new light on optical trapping and tweezing
Researchers from the Structured Light group from the School of Physics at the University of the Witwatersrand in Johannesburg, South Africa, have found a way to use the full beam of a laser light, to control and manipulate minute objects such as single cells in a human body, tiny particles in small volume chemistry, or working on future on-chip devices. (2018-11-27)

Holography, light-field technology combo could deliver practical 3-D displays
Researchers in Japan and Belgium has begun to explore a combination of holography and light field technologies as a way to reduce the size and cost of more people-friendly AR/VR devices. (2018-09-07)

Chinese scientists achieve success in nitrogen metallization
A Chinese research team announced it has successfully metallized nitrogen at extreme conditions. The team, working at the Institute of Solid State Physics at the Hefei Institutes of Physical Science (CASHIPS), developed its own pulsed-laser heating system and ultra-fast optical detection technology to conduct the experiment. (2018-07-06)

Taming the multiverse: Stephen Hawking's final theory about the big bang
Professor Stephen Hawking's final theory on the origin of the universe, which he worked on in collaboration with Professor Thomas Hertog from KU Leuven, has been published today in the Journal of High Energy Physics. (2018-05-02)

Multifunctional metalens unlocks with light
Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a flat optical component that is simultaneously a metalens, a microscope objective that can resolve details smaller than a wavelength of light, and an optical vortex and hologram generator. Each functionality is controlled by a different wavelength of light. (2018-03-13)

Holography approach improves heads up displays for planes and cars
Heads-up displays are transparent devices used in airplanes and cars to provide information such as critical flight data or driving directions on the windshield. An innovative holography-based approach could soon make these heads-up displays much easier to see with a large eye box. (2018-03-12)

Deep learning reconstructs holograms
Deep learning is one of the most exciting forms of machine learning that is behind several recent leapfrog advances in technology including for example real-time speech recognition and translation as well image/video labeling and captioning, among many others. Especially in image analysis, deep learning shows significant promise for automated search and labeling of features of interest, such as abnormal regions in a medical image. (2018-02-23)

Measurements from 3-D augmented reality holographic models shown to be highly accurate
Measurements taken on projected augmented reality 3-D holographic models were shown to be essentially as accurate as 'gold standard' measurements and nearly approaching that of PACS measurements, according to a study to be presented at the ARRS 2018 Annual Meeting, set for April 22-27 in Washington, D.C. (2018-02-09)

Better than a hologram: Research produces 3-D images floating in 'thin air'
In the original Star Wars film, R2D2 projects an image of Princess Leia in distress. The iconic scene includes the line still famous 40 years later: 'Help me Obi Wan Kenobi, you're my only hope.' BYU electrical and computer engineering professor and holography expert Daniel Smalley has long had a goal to create the same type of 3-D image projection. In a paper published this week in Nature, Smalley details the method he has developed to do so. (2018-01-24)

Viewing atomic structures of dopant atoms in 3-D relating to electrical activity in a semiconductor
Scientists at Tokyo Institute of Technology (Tokyo Tech) and their research team involving researchers of JASRI, Osaka University, Nagoya Institute of Technology, and Nara Institute of Science and Technology have just developed a novel approach to determine and visualize the three-dimensional (3-D) structure of individual dopant atoms using SPring-8. (2017-12-27)

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