Articles tagged with Photonic Crystals
Scientists at SUSTech and collaborators report first experimental observation of one-sided chiral hinge states in a 3D magnetic Weyl photonic crystal, verifying the 3D QHE of Fermi arcs. The discovery reveals a new physical mechanism for robust light transport in 3D space with potential applications in topological photonic devices.
A digital 'super-brain' with physics-based knowledge significantly speeds up the design and development of optical components, such as those for quantum computers and camera lenses. By integrating physical principles into machine learning algorithms, researchers reduce simulation time from months to days.
Hyperbolic localized plasmon resonances were achieved in an anisotropic two-dimensional crystal, enabling tunable optical chirality and potential applications in miniaturized photonic components, spectroscopic sensors, and molecular fingerprinting.
Researchers have discovered a photostriction effect in perovskite crystals that reversibly changes shape when exposed to light. This property makes them 'smart materials' that can be tuned to respond to stimuli, potentially leading to new device designs such as sensors or actuators.
The Ateneo de Manila University's ROSES Lab is the country's first facility for designing Photonic Integrated Circuits and training PIC designers. The lab has over 85 scientific publications and support from various global partners, positioning it as a driver of international collaboration in photonics research and innovation.
The Harvard team developed a new microfabrication method to produce high-performance, curved optical mirrors with extremely smooth surfaces. The mirrors can control light at near-infrared wavelengths, enabling fast and efficient quantum networking.
Scientists have developed a method to generate pseudomagnetic fields inside photonic crystals, allowing for arbitrary control of light flow. This technique enables high-speed data transmission and opens new possibilities for optical communications and quantum technologies.
A team of researchers from the University of Melbourne and Hanyang University has discovered a new method for creating spiral whirlpools of light through Van der Waals materials. This breakthrough could lead to more efficient and secure optical communication systems, including Australia's NBN.
Researchers at the University of Illinois developed cryosoret nanoassemblies that enhance fluorescence signals, reducing detection limits for biomarkers. The new platform offers dual-mode interaction between electric and magnetic components of light, promising highly sensitive and tunable biosensing systems.
The researchers created a novel method for using cholesteric liquid crystals in optical microcavities, enabling the formation and dynamic tuning of photonic crystals. This breakthrough research has the potential to revolutionize photonic engineering by opening up new perspectives in the manipulation of light.
Researchers at the University of Michigan discovered a class of materials with exciting properties for transporting photonic information, including unidirectional transport and defect-free light. The topological insulators' band gap size can be up to 100 times larger than current records, enabling new applications in optical devices.
Researchers have developed a new method to 3D-print glass structures with nanoscale precision, achieving nearly 100% reflectance in the visible spectrum. This breakthrough opens up a broader role for glass in nanophotonics, including wearable optics, integrated displays, and sensors.
Researchers at New York University discovered a new crystal type called Zangenite, which has a hollow structure and unique properties. The crystal was found to form through a two-step process and has potential applications in developing new materials, including photonic bandgap materials.
Researchers have developed an on-chip twisted moiré photonic crystal sensor that can simultaneously measure wavelength, polarization, and perform hyperspectral imaging. The device uses MEMS technology to control the twist and distance between layers in real time.
Researchers periodically drove a time crystal and observed a range of nonlinear dynamic behaviors, from perfect synchronization to chaotic motion. The team discovered the 'Farey tree sequence' and the 'devil's staircase,' which indicate specific patterns of behavior in response to periodic driving.
Researchers have created quantum holograms using metasurfaces and nonlinear crystals, enabling precise control over entangled information. The technology holds promise for practical applications in quantum communication and anti-counterfeiting, with potential to increase information capacity and reduce system size.
The researchers used high-speed laser writing to create lines spaced just 100 nm apart on a glass substrate, achieving super-resolution 3D direct laser writing. They overcame the challenge of intense laser light causing unwanted exposure in nearby areas by using a unique dual-beam optical setup and special photoresist.
The study reveals the existence of valley vortex states within water wave crystals, introducing a new degree of freedom for water wave manipulation. These states have significant implications for ocean energy extraction, marine engineering, and coastal infrastructures.
Researchers derived 2D coupled wave equations for photonic crystal surfaces, aiding the development of efficient laser devices. The findings established parallels between TM and transverse electric polarisation behaviours, offering unique advantages in certain configurations.
Researchers at EPFL have developed a compact electro-optic frequency comb generator using lithium tantalate, achieving 450nm spectral coverage with over 2000 comb lines. This breakthrough expands the device's bandwidth and reduces microwave power requirements, enabling practical applications in photonics.
Scientists have discovered luminescent nanocrystals that can quickly toggle between light and dark states, enabling faster and more efficient computing. This breakthrough could advance artificial intelligence and information technologies by reducing energy consumption and improving data processing.
German physicist Christian Schneider has been awarded a European Research Council Consolidator Grant to study the optical properties of two-dimensional materials. His team plans to develop experimental set-ups to investigate the unique properties of these materials, which could lead to new applications in quantum technologies.
Optical cooling has been elusive due to challenges in reaching high emission efficiency, but researchers shed light on the phenomenon using a stable 'dots-in-crystal' material. The study demonstrated true optical cooling with a theoretical cooling limit of approximately 10 K from room temperature.
The authors achieve a significant milestone in designing and fabricating ultra-high Q-PCNBC, as well as in efficient photon manipulation based on the LNOI platform. The designed PCNBC operates in the TE <sub> 00 </sub> mode, with a high Q factor of 1.87×10 <sup> 5</sup> , exceeding most similar cavities on LNOI substrate.
Researchers at Aalto University have designed realistic photonic time crystals that exponentially amplify light, paving the way for faster and more compact optical devices. The discovery has potential applications in nanosensing, imaging, and communication.
Scientists create diacetylene derivative-based luster materials with tunable colors and metallic lusters, opening new possibilities for applications in jewelry, printing inks, and cosmetics. The developed material can express a golden luster selectively using light irradiation, minimizing environmental footprint and weight.
Researchers at the Max Planck Institute have made a groundbreaking discovery in chiral materials, enabling the creation of orbital electronics. The study reveals that certain materials naturally possess orbital angular momentum monopoles, which can be harnessed for memory devices and other applications.
Cornell University researchers have created a dual-sided semiconductor chip that combines photonic and electronic functions, shrinking device size and energy consumption. This innovation leverages the unique properties of gallium nitride crystals, allowing for multiple functionalities to be integrated into a single wafer.
A team of researchers discovered that twisting layers of a material can generate an electron-path-deflecting effect, controlling light and electrons in quantum materials. The phenomenon mimics the Coriolis force, where light is used to manipulate electrons, exhibiting new quantum behaviors.
Researchers at Singapore University of Technology and Design have successfully printed 3D photonic crystals using titanium resin, achieving a complete photonic bandgap across the visible spectrum. This breakthrough enables precise control of light, opening up possibilities for advancements in telecommunications, sensing, and quantum te...
A team of researchers from NTT Corporation and Tokyo Institute of Technology has successfully achieved photonic topological phase transition by material phase transition. This breakthrough demonstrates the possibility to change the photonic topological phase in a reconfigurable manner, paving the way for novel research fields and promi...
Aston University researcher has developed a new method of analysing crystals in dehydrated blood samples using polarisation-based image reconstruction technique. The technique showed a 90% accuracy rate for early diagnosis and classification of cancer, making it less traumatic and risky for patients.
Researchers developed a new 2D quantum sensing chip using hexagonal boron nitride that can simultaneously detect temperature anomalies and magnetic fields in any direction. The chip is significantly thinner than current quantum technology for magnetometry, enabling cheaper and more versatile sensors.
Scientists have demonstrated spontaneous parametric down-conversion in a liquid crystal, creating entangled photon pairs with high efficiency. The discovery enables flexible and electric-field-tunable quantum light sources.
Researchers developed a chip-scale erbium-doped waveguide laser that approaches fiber-based laser performance, featuring wide wavelength tunability and stable output. The breakthrough enables low-cost, portable systems for various applications including telecommunications, medical diagnostics, and consumer electronics.
Scientists have developed a new approach for manufacturing semiconductors for visible light using DNA origami. The method uses a diamond lattice structure with periodicity of hundreds of nanometers, allowing for efficient solar cells and innovative optical waveguides.
A new, low-cost, high-efficiency photonic integrated circuit has been developed using lithium tantalate technology. The breakthrough platform offers scalable and cost-effective manufacturing of advanced electro-optical PICs, paving the way for volume manufacturing.
Researchers at Penn State have made light effectively experience a magnetic field within a photonic crystal structure. This breakthrough could lead to more efficient lasers and other photonic technologies by increasing the interaction between light and matter.
Researchers discover finite barrier bound states (FBICs) in photonic crystals, exhibiting non-radiating properties and complete localization of boundary modes within few lattice sites. This breakthrough offers a novel approach to achieving BICs and fine control of boundary modes.
Scientists create high-throughput automation to calculate surface properties of crystalline materials using established laws of physics. This accelerates the search for relevant materials for applications in energy conversion, production, and storage.
Researchers at UNIST have developed a groundbreaking technology that enables the real-time display of colors and shapes through changes in nanostructures. Utilizing block copolymers, they achieved the self-assembly of photonic crystal structures on a large scale, mimicking natural phenomena observed in butterfly wings and bird feathers.
The new skin demonstrates excellent mechanical performance, self-adaptive camouflage capabilities, and long-term stability. It can quickly recognize and match the background by modulating optical signals in response to external stimuli.
Researchers at UNICAMP developed a new technology to create bridges between superconducting circuits and optical fibers, enabling efficient transmission of information in the electromagnetic spectrum. This breakthrough paves the way for the development of advanced quantum networks with potential applications in computing and communicat...
Scientists successfully demonstrated the deflection of terahertz waves using distorted photonic crystals, mimicking gravitational effects. This breakthrough has significant implications for 6G communications and graviton physics.
Researchers used a unique X-ray technique to capture soundwaves' propagation in a diamond crystal, revealing ultrafast structural phenomena that were previously beyond scientific reach. The breakthrough enables real-time imaging of solid materials with unprecedented resolution and speed.
Researchers discovered how corrosion and crystallization over centuries created nanofabrication of photonic crystals in ancient Roman glass. The crystals have applications in modern technology, including waveguides, optical switches, and devices for fast optical communications.
Researchers have developed a new method to guide light in a 2D configuration, enabling the creation of tiny photonic circuits and opening up new possibilities for technology. The innovation uses extremely thin glass crystals that can trap and carry light over long distances.
Researchers developed a new method for fabricating nanoscale photonic crystals with ultrafast lasers, allowing for precise control over structure dimensions and gaps. The technique enables the creation of three-dimensional complex spatial structures, opening possibilities for applications in optical communication and light manipulation.
Researchers have successfully created photonic time crystals with fast oscillations in refractive index, faster than current theories can explain. This breakthrough has profound implications for the science of light and could enable truly disruptive applications.
A team of researchers discovered a new phenomenon, 'cavity-momentum locking', which allows precise control over quantum scar states in photonic crystals. This breakthrough has significant implications for quantum information, communication, and optoelectronic devices.
The researchers developed a method to create ultracompact photonic crystal cavities that can generate entangled photons. The discovery is crucial for the development of quantum computing and sensing applications. By controlling the cavity's properties, they can efficiently convert pump power into coherent light.
A new type of photonic time crystal has been developed, showing that these artificial materials can amplify electromagnetic waves. This could lead to more efficient wireless communications and improved lasers., The creation of two-dimensional photonic time crystals makes them easier to fabricate and experiment with.
Researchers at the University of Birmingham have devised a way to fabricate a complex structure, previously found only in nature, to control light in the visible range. This new approach uses self-assembled colloidal particles to create chiral photonic crystals with tailored optical properties.
Chemists from Rice University and the University of Texas at Austin found that increasing charge-acceptor molecules on semiconducting nanocrystals can lead to reduced electron transfer rates in hybrid materials. The study highlights the importance of considering ligand-ligand interactions when designing light-activated nanomaterials fo...
Researchers at the University of Tsukuba have developed an optoelectronic resonator that enhances the sensitivity of an electron pulse detector, allowing for ultrafast electronic characterization of proteins or materials. This breakthrough may aid in the study of biomolecules and industrial materials.
Researchers created a stretchable film that can distinguish between different types of sugar using fluorescent signals. The film changes color when stretched, producing a kaleidoscope effect and enhancing the unique shifts in fluorescence intensity of sugars tagged with a dye.
Researchers developed topological membrane metadevices for on-chip terahertz wave manipulations, showcasing robust single-mode manipulation and valley-locked edge states. This breakthrough enables the development of a robust platform for terahertz on-chip communication, sensing, and multiplexing systems.
Scientists successfully realize one-dimensional nodal ring and ridge states, enabling novel functional photonic devices such as sharp bend waveguides and microcavity lasing. The discovery also introduces intrinsic relationship between optical Tamm state and nodal ring, paving the way for deterministic design of optical phenomena.
A research group at South-Central MinZu University has achieved the largest complete photonic bandgap (CPBG) of 5.62% in a silicon nitride slab, significantly enhancing nonlinearity and enabling polarization multiplexing. The breakthrough could lead to the development of high-performance CPBG devices in SiN slabs.
A team of researchers from Texas A&M University discovered helicoidal screw dislocations in layered polymers, enabling the easy diffusion of solvents through layers. This discovery has implications for stimuli-interactive structural colors, which are used in human-interactive electronics and health sensors.