Articles tagged with Holography
Researchers have developed a laser-based method to print nanostructured holograms on dried corn syrup films, enabling edible hologram decoration for foods. The holograms can also indicate sugar content or ensure food safety, making them a promising innovation in the food industry.
A new scanless high-speed holographic fluorescence microscopy system has been developed with submicron resolution, enabling 3D sensing of nanoparticles and color-multiplexed holographic fluorescence imaging. The system achieves measurements in less than 1 millisecond using digital holography and a phase modulator.
Researchers developed a new approach to improve holographic display technology, combining software and hardware advancements. Michelson holography uses two phase-only SLMs to create higher-quality images, overcoming limitations of existing technologies and enabling compact devices for virtual and augmented reality applications.
Researchers have developed a new method called Raman holography, which uses surface-enhanced Raman scattering to image and analyze single particles in three dimensions. This technology has the potential to revolutionize fields such as live cell imaging and anti-counterfeiting.
Holographic fluorescence imaging combines sensitivity, resolution, and specificity to track individual particles in 3D. The technique uses lateral shearing-interferometry to access phase information of each photon, enabling single-molecule sensitivity.
ETRI's 1μm pixel pitch panel and 360° tabletop hologram system has won the I-zone Best Prototype Award at Display Week 2020, showcasing a significant advancement in display technology. The system allows for large viewing angles and is the first to receive this award from a South Korean developer.
A team at Tokyo University of Agriculture and Technology has developed a system to produce true holographic three-dimensional images appearing mid-air, viewable from most angles in the room. The proof of concept uses metasurface materials that can manipulate light, allowing for a genuine holographic movie.
A color-multiplexed holography system has been developed to record 3D information of objects illuminated by a white-light lamp and self-luminous specimens as a single multicolor hologram. The system acquires color 3D information with only a single-shot exposure and no color filter array.
A new AI-powered holographic imaging system detects bacteria growth in water samples with high sensitivity and speed, saving over 12 hours compared to traditional methods. The platform can classify three types of bacteria, including E. coli, within 9 hours.
Researchers successfully tested a holographic guidance system in a clinical trial, demonstrating its feasibility and potential benefits for liver tumor ablation. The technology improved visualization of the tumor and surrounding structures, allowing for faster localization and increased treating-physician confidence.
Researchers have developed a faster calculation method for simple holograms, reducing generation time by up to 56 times. The new algorithm enables the creation of compact, power-efficient next-gen augmented reality devices, including HUDs and NEDs.
Researchers created a multimodal digital holographic microscope that can produce 3D fluorescence and phase images of living cells without scanning. This technology has the potential to increase our understanding of stem cell processes in plants and revolutionize biology.
Researchers from Tsinghua University and MIT developed a thin lensless camera free of noise using Fresnel zone plate and compressive sensing algorithm. The FZA imaging system can capture high-quality images with single-shot 'hologram' without calibration, driving down the cost of camera production.
Researchers from OIST create cheaper and user-friendly cryo-electron microscope to visualize biomolecules. The microscope uses low-energy electrons, which scatter more with lighter elements, providing a new way to image specimens.
Researchers developed a digital holography method for assessing composite materials' quality, particularly ceramic spraying materials. This technique allows for precise analysis without distorting results or requiring sensor installation.
Researchers at Pohang University of Science & Technology developed a multifunctional meta-hologram that can create different hologram images depending on the direction of light incident on the device. The new meta-hologram demonstrated diffraction efficiency higher than 60% and high-quality images were observed.
The CUHK Faculty of Engineering has developed a novel imaging approach that enables faster 3D imaging for biomedical research. The new method uses compressive sensing and multi-focus laser scanning to reduce the number of measurements by up to 90%, resulting in significantly faster image acquisition times.
The new CHIMERA printer produces digital 3D holograms with unprecedented detail and realistic color, created using low-cost commercial lasers and high-speed printing. The printer can produce wide-field-of-view holograms with full parallax, ideal for applications such as museum displays and architectural models.
Scientists have developed a new method to measure polarization using ultra-thin metasurface holograms. The technique uses overlapping holographic images to determine the amplitude contrast and phase difference between polarized light waves, enabling fast and compact devices for spectroscopy, sensing, and communications applications.
Researchers from the University of Leeds have developed 3D holograms to share their work on massive star cluster formation with the general public. The holograms allow people to watch millions of years of stellar evolution in 3D, making it easier for non-experts to understand complex topics.
Researchers from EPFL developed a new holographic technique that can encode quantum information in a nanostructure, enabling high-resolution imaging of electromagnetic fields and manipulating the quantum properties of free electrons. This breakthrough has significant implications for quantum computing applications.
Researchers at KAIST have designed an ultrathin display that can project dynamic, multi-colored 3D holographic images using tiny pinholes in a thin film. The system is small and scalable, paving the way for widespread applications of 3D holographic displays.
Researchers from Bilkent University develop a technique to eliminate cross-talk in 3D holographic projection, enabling the creation of realistic and dynamic holograms. The method uses wavefront engineering and orthogonality properties to achieve high-quality projections with increasing hologram resolution.
Researchers developed Bright-field Holography to overcome limitations of holographic 3D imaging. The method combines the image contrast advantage of bright-field microscopy with the snapshot volumetric imaging capability of holography, allowing for rapid creation of images equivalent to those from a bright-field microscope.
The inaugural issue of Advanced Photonics showcases significant research across optics and photonics technologies, including light-sheet microscopy and deep learning for digital holography. The journal aims to provide a trusted source of groundbreaking research in optics and optical technologies.
Researchers developed a new approach to multicolor holography, encoding images onto thin waveguide structures that guide light. This method produces complex multicolor holographic images with no need for bulky lenses or prisms, making it suitable for portable devices like augmented reality glasses and smartphones.
Researchers at SUTD developed a new holographic colour printing device that modulates both phase and amplitude of light, increasing security and deterring counterfeiting. The technology uses nano-3D-printed polymer structures to display coloured images under ambient white light while projecting multiple holograms under laser illumination.
Researchers use airborne digital holography to confirm that water droplets cluster inside clouds, which can affect precipitation and cloud lifetime. The study's findings improve the general knowledge of clouds and their effects on the planet.
Researchers at Chiba University have successfully developed a special-purpose computer that can project high-quality three-dimensional (3D) holography as a video. The computer, called HORN-8, uses a calculation method called the 'phase type' to adjust the phase of light and increase computing speed.
A new technique using holographic images guides the insertion of external ventricular drains, increasing accuracy and reducing complications. The mixed-reality headset provides visualizations of individual patients' unique brain anatomy, allowing neurosurgeons to perform procedures more accurately and safely.
Harmful algal blooms have become a serious problem for marine life, affecting humans and wildlife. UCLA researchers created a new flow cytometer that analyzes water samples instantly, providing real-time insight into algal bloom locations and severity.
Researchers have developed a digitally designed holographic optical element that can replicate the functions of bulky optics, enabling more people-friendly AR/VR devices. The approach overcomes a significant bottleneck in commercial success by incorporating collimating functions on the lens array itself.
Researchers at the Chinese Academy of Sciences have successfully metallized nitrogen under extreme conditions, revealing a pressure-temperature region above 125 GPa and 2500 K. This breakthrough sheds light on the interplay between molecular dissociation, melting, and metallization in nitrogen.
Scientists discovered defects play a crucial role in initiating phase transitions from insulators to metals. The study also reveals an intermediate state formed during transformation, challenging previous assumptions of two-state transitions.
Hawking and Hertog propose a new theory that predicts the universe is finite and globally smooth, contradicting eternal inflation. They base their approach on string theory and holography, which describes the universe as a complex hologram.
Researchers at UC Berkeley are developing a technology to read and write neural activity, enabling them to stimulate specific sets of neurons to simulate sensory experiences. The goal is to replace lost sensations after peripheral nerve damage or control prosthetic limbs, with potential applications in treating neurological disorders.
TeleHuman 2 brings actual holograms to life, allowing people in different locations to appear before one another in life-size 3D. The system enables face-to-face interaction with a realism that cannot be achieved with traditional video conferencing tools, promoting empathy and emotional connotation.
Physicist Yasha Neiman proposes a new vantage point on space-time geometry, combining holography and twistor theory to develop a full-fledged quantum gravitational theory. This framework aims to unify quantum mechanics and General Relativity, overcoming current challenges in fundamental theory.
Researchers at Harvard SEAS developed a flat metalens that can resolve details smaller than a wavelength of light, generate optical vortices and holograms, and exhibit achromatic behavior in multiple colors.
Researchers developed a holographic heads-up display that increases the size of the displayed image, allowing drivers and pilots to see information without shifting their gaze. The technology uses holographic optical elements to redirect light and create a larger eye box, making it easier to view critical data.
Measurements taken on projected augmented reality holographic models are highly accurate, rivaling traditional 'gold standard' methods. The study's results demonstrate the potential of AR technology for educational, training, and research purposes.
A team at Brigham Young University has developed a method to produce full-color, aerial volumetric images with 10-micron image points using photophoretic optical trapping. The display can be seen from any angle, unlike traditional holographic projections, and is akin to a 3D printer for light.
A team of researchers at Caltech has developed a way to encode multiple holographic images in a single surface using carefully engineered silicon oxide and aluminum surfaces. The technology works by reflecting light differently depending on the angle of incoming light, allowing for high-quality images with no loss of resolution.
Researchers at UCLA developed a deep-learning-based technique to reconstruct holograms for microscopic images, producing better results than current methods. This approach could aid in diagnosing abnormalities in medical images and improve optical microscopy for medical diagnostics.
Researchers at KIT have developed innovative fluorescent 3D structures to improve counterfeit protection in products like bank notes, pharmaceuticals, and car spare parts. These new security features can be easily integrated into various applications to prevent product piracy and counterfeiting.
A new method for controlling self-balancing mobile robots has been proposed by Prof. Mou Chen, improving their tracking performance. The technique utilizes a disturbance observer to fully utilize dynamic information and adjust the robot's behavior.
Researchers at ITMO University have developed a new approach for printing luminescent structures using europium-doped zirconia nanoparticle ink. The ink enables the fabrication of custom holograms with high stability and durability.
Researchers have developed a new technology to create inexpensive full-color 2-D and 3-D holograms that are far more realistic, brighter and can be viewed at wider angles than current holograms. The applications for this technology could be wide-ranging, from currency and identification badges to amusement rides and advertisements.
The new camera can record fast processes in transparent specimens and increase image resolution. It captures phase deformations of ultrashort laser pulses, allowing researchers to study biochemical reactions and cellular mechanisms with high accuracy.
The RMIT team has developed a nano-hologram that is simple to make, can be seen without 3D goggles and is 1000 times thinner than a human hair. The discovery could transform industries such as medical diagnostics, education, data storage, defence and cyber security with the potential to display a wealth of data.
Researchers have developed a method to create stretchable holograms that can display multiple images, which can be switched depending on the stretching of the material. The technique uses metasurfaces and gold nanorods to generate holographic images with changing shapes.
Researchers at TUM create holographic imaging process using Wi-Fi data to generate 3D images of the surrounding environment. This technology allows for centimeter-scale precision and can be used in industrial facilities to track objects as they move, improving efficiency and accuracy.
A team of researchers from Harvard SEAS encoded multiple holographic images in a metasurface that can be unlocked separately with differently polarized light. This advancement offers more control over polarization manipulation and measurement, enabling applications such as anti-fraud protection and entertainment.
Researchers have found substantial evidence supporting a holographic explanation for the universe's irregularities, as much as there is for traditional theory of cosmic inflation. A holographic universe is one where all information is contained in a 2D surface on its boundaries.
Researchers at KAIST create a 3D holographic display that significantly enhances the performance of existing displays, allowing for larger images and wider viewing angles. By controlling volume speckle fields, they achieve an image size increase of up to 2 cm in length, width, and height.
Researchers from ANU have developed a device that creates complex holographic images in infrared using silicon pillars. This technology has the potential to be used in various applications such as ultra-thin optical devices for cameras and satellites.
Researchers at NIST have developed a method to create visual holograms using neutron beams, which can reveal detailed information about an object's interior. This technique has potential applications in studying solid materials and exploring small structures.
A South Korean research team has developed a novel tabletop display system allowing multiple viewers to view a full 3-D image from any angle, giving complete 360-degree access. The system uses an aspheric lens to solve visual distortion and aims to create high-quality holographic images in the near future.
NICT developed a projection-type see-through holographic 3D display technology that allows for independent design of display size and visual angle. This technology has potential applications in in-car head-up displays, smart glasses, and digital signage.
Researchers from Bar-Ilan University and Harvard University developed a mathematical tool to visualize electron shapes in superconducting materials. This innovation helps gain a better understanding of complex material properties, paving the way for future discoveries.