Articles tagged with Photonic Crystals
By placing quantum dots on a specially designed photonic crystal, researchers enhanced fluorescence intensity by up to 108 times. This breakthrough could lead to high-brightness light-emitting diodes, optical switches and biosensors for detecting DNA and other biomolecules.
Scientists have developed a new type of flexible plastic film that combines natural and manmade optical effects, producing a color-changing effect that depends less on viewing angle. The films are made from arrays of spheres stacked in three dimensions, which scatter light and produce intensely colored colors.
Georgia Tech researchers develop wavelength-demultipler (WD) that can separate high-resolution wavelengths in tight confines, solving problems with combining delicate optical functions. The WD is integrated into a microchip for signal processing, communications, or sensing applications.
Researchers at the University of Toronto have developed pressable photonic crystals that capture data-rich fingerprints in multiple colours, offering improved security. The technology can also be used for sensors in various industries, such as air-bag release mechanisms and strain torque sensors.
Photonic crystals provide ideal characteristics for the development of instruments with diverse applications. A multidisciplinary research effort at the University of Navarra has led to significant breakthroughs in manufacturing these crystals, paving the way for miniaturization and enhanced nanotechnology.
Researchers at Georgia Tech will create new tools for fabricating 3D photonic crystals using optical patterning and polymeric structures. This project aims to make high-quality 3D crystals accessible to a wider range of researchers, increasing the potential for innovation in crystal research.
Ames Laboratory researchers have fabricated PBG crystal microstructures in open air using a modified technique called microtransfer molding. The team's achievement enables the creation of multilayered photonic band gap crystals, a key step towards creating photonic crystals within a single computer chip.
Terahertz (THz) frequencies have potential applications in medicine, remote sensing, imaging, and satellite communications. Lehigh researcher Yujie J. Ding has developed a compact THz radiation source that can generate coherent waves with high output powers, enabling new diagnostic tools and monitoring technologies.
By embedding a two-dimensional photonic crystal into the top face of a VCSEL, researchers can accurately design and control the device's mode characteristics. The technology has the potential to push VCSEL performance toward higher power and enable mass-produced devices for high-speed data communication.
Researchers at Georgia Tech have developed a method to create complex patterns in photonic crystals using hydrogel nanoparticles. The technique uses a photo-patterning method combined with self-assembly, allowing for the creation of optically transparent materials with unique properties.
Photonic crystals, which can act as tiny optical components for managing photons, may enable the development of miniaturized optical components and circuits. The new technique could accelerate computing to the speed of light by reducing the size of optical components.
A team of researchers from the University of Toronto has developed a method to precisely control the placement and ordering of photonic crystals on surfaces, paving the way for the creation of photonic microchips. This breakthrough could enable faster data transfer rates in optical communications systems.
A tiny gallium arsenide bar has been developed that can bend infrared beams with minimal loss of light, opening possibilities for more efficient lasers and photonic computing. The device uses a two-dimensional photonic crystal structure with strategically placed holes to filter out unwanted wavelengths.
Researchers have developed a process called hierarchical self-assembly, where hollow spheres stack themselves into larger structures to form photonic crystals. These materials can manipulate light in predictable ways, offering potential applications in optical data storage, telecommunications, and lighting systems.
Researchers at Sandia National Laboratories have created a microscopic three-dimensional lattice that confines light at optical wavelengths, potentially revolutionizing the fiber-optics communications industry. The technique appears to be the cheapest and most efficient way to bend light entering or emerging from optical cables.
Researchers at Columbia University have developed a technology that combines electronics and optics on a single chip, enabling the creation of miniaturized optical devices such as tiny lasers and implantable medical sensors. This breakthrough could simplify fiber optic communications and lead to more efficient and cost-effective systems.