Hologram Current Events

Hologram Current Events, Hologram News Articles.
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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)

World's thinnest hologram paves path to new 3-D world
Researchers pave way towards integration of 3-D holography into electronics like smart phones, computers and TVs, with development of nano-hologram 1,000 times thinner than a human hair. (2017-05-18)

Quantum holograms as atomic scale memory keepsake
A theoretical model of quantum memory for light, adapting the concept of a hologram to a quantum system has been published in EPJD. The authors demonstrate that it is theoretically possible to retrieve, on demand, a given portion of the stored quantized light signal of a holographic image -- set in a given direction in a given position in time sequence. This is done by shaping the control field both in space and time. (2014-10-21)

Researchers find way to create wide variety of new holograms
Researchers have developed techniques that can be used to create ideal geometric phase holograms for any kind of optical pattern -- a significant advance over the limitations of previous techniques. The holograms can be used to create new types of displays, imaging systems, telecommunications technology and astronomical instruments. (2015-11-10)

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)

Holograms make for better vision tests
A new paper published in the July 1 issue of OSA's Optics Letters shows that researchers in Australia have created a new one-step test that uses holograms to diagnose the astigmatic error of the human eye, a key measurement in determining the appropriate prescriptions for eye glasses in patients. (2007-07-05)

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)

First step toward practical application of holographic memory with magnetic assist
Yuichi Nakamura, Associate professor at Toyohashi University of Technology, and his group, are the first in the world to have successfully applied magnetic assist recording to magnetic-holographic memory to reduce recording energy consumption and achieve non-error data reconstruction. This new technology is promising for practical application of magnetic-holographic memory as a rewritable, ultra-high-density, high-speed optical information storage medium. (2017-12-04)

Georgia Tech develops technology for more compact, inexpensive spectrometers
Georgia Tech researchers have developed a technology to help spectrometers analyze substances using fewer parts in a wider variety of environments, regardless of lighting. The technology can improve the portability while reducing the size, complexity, and cost of many sensing and diagnostics systems that use spectrometers. (2006-02-08)

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)

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)

Virtual reality could help diagnose heart conditions
Virtual reality that allows doctors to visualise the heart in three dimensions could help in the diagnosis of heart conditions. A pilot study published today in the open access journal Cardiovascular Ultrasound reveals that doctors can diagnose heart conditions quickly and easily from virtual three-dimensional animated images or 'holograms' of the heart. Three-dimensional (3D) holograms allow doctors to 'dive' into the beating heart and see interior parts of the organ. (2005-12-22)

Projection-type see-through holographic 3-D display technology
The National Institute of Information and Communications Technology has newly developed a projection-type see-through holographic 3-D display technology, in which an optical screen of a digitally designed holographic optical element and a digital holographic projection technique were combined. Holographic 3-D image reconstruction was successfully demonstrated via the see-through screen to a target observation area. The screen was fabricated using a hologram printer, which was uniquely developed by NICT. (2016-10-13)

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)

What's on the surface of a black hole?
New research in theoretical physics shows that black holes aren't the ruthless killers we've made them out to be, but instead benign -- if imperfect -- hologram generators. (2015-06-16)

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)

Inkjet hologram printing now possible
Vivid holographic images and text can now be produced by means of an ordinary inkjet printer. This new method, developed by a team of scientists from ITMO University in Saint Petersburg, is expected to significantly reduce the cost and time needed to create the so-called rainbow holograms, commonly used for security purposes -- to protect valuable items, such as credit cards and paper currency, from piracy and falsification. (2015-11-24)

UA optical scientists add new, practical dimension to holography
Researchers are the first to create 3-D holographic displays that can be erased and rewritten in minutes. (2008-02-06)

'Groovy' hologram creates strange state of light
A new three-in-one optical element can control light's amplitude, phase, and polarization through a wedding of old-fashioned holograms and state-of-the-art nanoscale features. An unusual state of light, a radially polarized beam, which is important for microscopy and particle manipulation, has been created by sending conventional laser light through this holographic plate. (2013-08-20)

Two holograms in one surface
Engineers at Caltech have developed a way to encode more than one hologram in a single surface with no loss of resolution. (2017-12-11)

Full-circle viewing: 360-degree electronic holographic display
A research team from South Korea has developed a novel tabletop display system that allows multiple viewers to simultaneously view a hologram showing a full 3-D image as they walk around the tabletop, giving complete 360-degree access. The paper was published this week in the journal Optics Express, from The Optical Society. (2016-10-18)

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)

Tying light in knots
The remarkable feat of tying light in knots has been achieved by a team of physicists working at the universities of Bristol, Glasgow and Southampton, UK, reports a paper in Nature Physics this week. Understanding how to control light in this way has important implications for laser technology used in wide a range of industries. (2010-01-17)

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)

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)

A new approach to 3-D holographic displays greatly improves the image quality
A research team led by Professor YongKeun Park of the Physics Department at the Korea Advanced Institute of Science and Technology (KAIST) has come up with a solution and developed a 3-D holographic display that performs more than 2,600 times better than existing 3-D holographic displays. This study is expected to improve the limited size and viewing angle of 3-D images, which were a major problem of the current holographic displays. The study was published online in Nature Photonics on Jan. 23, 2017. (2017-01-27)

Fastest movie in the world recorded
Processes at a molecular level are miniscule and often extremely fast, and therefore difficult to capture in action. Scientists at Helmholtz-Zentrum Berlin füur Materialien und Energie and the Technische Universitat Berlin now present a method in Nature Photonics that takes us a good step towards producing a (2011-01-12)

New hologram technology created with tiny nanoantennas
Researchers have created tiny holograms using a (2013-11-15)

Purdue Researchers Make Light 'Stand Still' To Measure Motion
Purdue University researchers have demonstrated a new method for using lasers and semiconductors to more accurately measure the velocity of a moving object. (1998-01-01)

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)

Holographic diagnostics
'Smart' holograms, which are currently being tested to monitor diabetes, and could be used to monitor a wide range of medical and environmental conditions in future, have been developed by researchers. (2014-01-22)

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)

Tunneling ionization helps scientists to track ultrafast changes in molecules
Oleg Tolstikhin, a scientist from MIPT, together with colleagues from Japan and China have proposed a new method which allows to 'look' inside atoms and molecules and observe changes, occurring in their electron structure at unprecedented time scales (10^-18 seconds). Having such an accurate description of the dynamics of atomic electrons will allow scientists to control chemical reactions by directly influencing the electrons with laser impulses. (2016-06-08)

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)

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)

Stretchable hologram can switch between multiple images (video)
The possibility of sending and receiving holographic messages has long tantalized sci-fi fans. Although we're not there yet, scientists have now created holograms that can change from one image to another as the materials used to generate them are stretched. The study detailing how they did it appears in ACS' journal Nano Letters. (2017-05-10)

Communicator Prize 2000 goes to Albrecht Beutelspacher
Albrecht Beutelspacher is the first winner of the newly created Communicator Prize. The prize, which is endowed with DM 100,000, has been awarded to the Gießen mathematician, in recognition of his outstanding achievements in communicating his discipline to the public. The prize is to be presented on the 15th September 2000 in the framework of a WDR science show that will be broadcast on the ARD channel from 9.45 p.m. till 10.45 p.m. on the 4th October. (2000-09-17)

NYU physicists find way to explore microscopic systems through holographic video
Physicists at New York University have developed a technique to record 3-D movies of microscopic systems, such as biological molecules, through holographic video. The work, which is reported in Optics Express, has potential to improve medical diagnostics and drug discovery. (2009-07-20)

Data storage enters a new dimension
Holograms will be storing movies, pictures and computer data much sooner than anyone thought, according to a company in Minnesota. The company hopes to use off-the-shelf technologies to make data storage holodiscs that can store six times as much data as DVDs. (2000-04-11)

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)

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