Current Optical Fiber News and Events

Current Optical Fiber News and Events, Optical Fiber News Articles.
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New "metalens" shifts focus without tilting or moving
An MIT-fabricated metalens shifts focus without tilting, shifting, or otherwise moving. The design may enable miniature zoom lenses for drones, cellphones, or night-vision goggles. (2021-02-22)

New sensor paves way to low-cost sensitive methane measurements
Researchers have developed a new sensor that could allow practical and low-cost detection of low concentrations of methane gas. Measuring methane emissions and leaks is important to a variety of industries because the gas contributes to global warming and air pollution. (2021-02-22)

Bioengineered hybrid muscle fiber for regenerative medicine
Scientists regenerate damaged muscle tissue using cell reprogramming technology and natural-synthetic hybrid scaffold. (2021-02-21)

Low-loss single-mode hybrid-lattice hollow-core photonic crystal fiber
Inhibited-coupling hollow-core photonic-crystal fibers (IC-HCPCF) are proving to be serious candidates for next-generation optical fiber. However, the difficulty in simultaneously attaining ultra-low loss, single-mode, polarization-maintaining hinders this prospect. In recent publication, Fetah Benabid and co-workers developed a novel IC-HCPCF. The fiber is based on hybrid Kagome-tubular cladding, and its performance opens up a new route for the development of HCPCFs combining robust ultra-low-loss and single-mode laser beam transportation. (2021-02-21)

Seeing stable topology using instabilities
The researchers explore how topological phases of light in nonlinear optical media undergo the process of modulational instability. (2021-02-19)

Deep brain stimulation prevents epileptic seizures in mouse model
Scientists led by neurobiologist Prof. Dr. Carola Haas, head of the research group at the Department of Neurosurgery at Medical Center - University of Freiburg and the BrainLinks-BrainTools research center, have investigated a new therapeutic approach to prevent epileptic seizures in temporal lobe epilepsy. They showed in mice that low-frequency stimulation of specific brain areas could completely stop epileptic activity. (2021-02-19)

Spin hall effect of light with near 100% efficiency
POSTECH-KAIST joint research team develops perfect SHEL using anisotropic metasurfaces. (2021-02-18)

Ultrabright dots see beyond skin deep
Tiny light-emitting probes give researchers a better option for noninvasive imaging of living tissue. (2021-02-16)

A performance leap for Graphene modulators in next generation datacom and telecom
An international team of researchers reports in Nature Communications the development of a graphene-based optical modulator that proves outstanding performances in modulation efficiency, stability and high speed. (2021-02-16)

Application of potassium to grass used as cover crop guarantees higher-quality cotton
In an article, Brazilian researchers show that besides simplifying operational logistics and improving production, fertilization of the grass used as a cover crop can reduce fertilizer use in the long run. (2021-02-16)

International study reveals exceptional property of next generation optical fibers
Researchers from the Optoelectronics Research Centre (ORC) and Universite Laval, Canada, have successfully measured for the first time back-reflection in cutting-edge hollow-core fibres that is around 10,000 times lower than conventional optical fibres. (2021-02-15)

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)

Highly efficient metasurface poised to improve communication and biosensing
Researchers have created a new plasmonic metasurface that achieves record high light efficiency over the entire centimeter-scale metasurface. The advance makes the new nanostructured thin film practical for use in a variety of applications from light-based communication to fluorescence-based biosensing. (2021-02-11)

Capturing free-space optical light for high-speed wifi
Visible and infrared light can carry more data than radio waves, but has always been confined to a hard-wired, fiber-optic cable. Working with Facebook's Connectivity Lab, a Duke research team has now made a major advance toward the dream of ditching the fiber in fiber optics. (2021-02-11)

Monitoring the body's fat burning by breath
Your breath holds the key to monitoring fat burning, and now a research group from Tohoku University has created a compact and low-cost device that can measure how our body metabolizes fat. (2021-02-10)

Object transparency reduces human perception of three-dimensional shapes
Toyohashi University of Technology discovered that when people judge the thickness of an object, objects with glass-like transparent optical properties are perceived to be flatter than they actually are. This discover may be useful for everyday applications, such as devices to assist with walking in people with low-vision or autonomous driving. (2021-02-10)

Efficiency limits of next-generation hybrid photovoltaic-thermal solar technology
Spectral-splitting hybrid photovoltaic-thermal (SSPVT) technology has emerged as a promising route toward high-performance solar harvesting. In this research, scientists have developed a comprehensive framework for modelling SSPVT solar collectors. The framework can be used to determine the efficiency limits of such collectors and to indicate how these limits can be approached through the selection of optimal designs and materials. This work promotes and provides guidance to the design, development and deployment of next-generation solar systems. (2021-02-08)

3D-printed spectrometer on a 100 x100 μm² footprint
The miniaturisation of spectroscopic measurement devices opens novel information channels in medical science or consumer electronics. Scientists of the University of Stuttgart, Germany, developed a 3D-printed miniature spectrometer with a volume of 100 × 100 × 300 μm³ and a spectral resolution of up to 10 nm in the visible range. This spectrometer can be manufactured directly onto camera sensors, and a parallel arrangement allows for quick (''snapshot'') and low profile, highly customizable hyperspectral cameras. (2021-02-08)

Silicon waveguides move us closer to faster, light-based logic circuits
IBM researchers have succeeded in guiding visible light through a silicon wire efficiently, an important milestone in the exploration towards a new breed of faster, more efficient logic circuits. (2021-02-08)

'Multiplying' light could be key to ultra-powerful optical computers
New type of optical computing could solve highly complex problems that are out of reach for even the most powerful supercomputers. (2021-02-08)

Breakthrough in quantum photonics promises a new era in optical circuits
In recently published work, researchers at USC have shown that single photons can be emitted in a uniform way from quantum dots arranged in a precise pattern. The team has used such methods to create single-quantum dots, with their remarkable single-photon emission characteristics. It is expected that the ability to precisely align uniformly-emitting quantum dots will enable the production of optical circuits, potentially leading to novel advancements in quantum computing and communications technologies (2021-02-05)

Scientists optimized technology for production of optical materials for microelectronics
Scientists of Far Eastern Federal University (FEFU) have advanced the technology of high-speed sintering for optical ceramics (Nd3+:YAG), i.e. active elements generating laser emission in the near-infrared wavelength range (1.06 μm) for cutting the edge microelectronics and medicine. The researchers have managed to reduce significantly the initial nanopowders consolidation period (10 - 100 times) forming a nanostructure with ensured high optical transparency of the ceramic material. A related article appears in Optical Materials. (2021-02-04)

An optical coating like no other
The technology, based on Fano resonance, results in a coating that fully reflects only a very narrow wavelength. The technology could improve the effectiveness of devices that use hybrid thermal-electric power generation as a solar energy option. (2021-02-04)

Switching nanolight on and off
The report demonstrates a new method to control the flow of light of nanolight. Optical manipulation on the nanoscale, or nanophotonics, has become a critical area of interest as researchers seek ways to meet the increasing demand for technologies that go well beyond what is possible with conventional photonics and electronics. (2021-02-04)

Experiences of post-traumatic stress disorder (PTSD) linked to nutritional health
A study of factors associated with Post-Traumatic Stress Disorder (PTSD) has led to a number of novel findings linking nutrition to experiences of PTSD. Notable among them is the discovery that Canadians, between the ages of 45 and 85, were less likely to exhibit PTSD if they consumed an average of two to three fiber sources daily. (2021-02-03)

New ink jet approach offers simple way to print microdisk lasers for biosensing
Researchers have developed a unique inkjet printing method for fabricating tiny biocompatible polymer microdisk lasers for biosensing applications. The approach enables production of both the laser and sensor in a room temperature, open-air environment, potentially enabling new uses of biosensing technologies for health monitoring and disease diagnostics. (2021-02-03)

Say goodbye to the dots and dashes to enhance optical storage media
A new technology developed at Purdue University is aimed at modernizing the optical digital storage technology. This advancement allows for more data to be stored and for that data to be read at a quicker rate. Rather than using the traditional dots and dashes as commonly used in these technologies, the Purdue innovators encode information in the angular position of tiny antennas, allowing them to store more data per unit area. (2021-02-02)

Air-guiding in solid-core optical waveguides: A solution for on-chip trace gas spectroscopy
We demonstrate an air-suspended waveguide that exhibits exceptional field delocalization and an external field confinement of 107 %, providing a stronger interaction with the surrounding air than a free-space beam. Operating at mid-infrared wavelengths, the waveguide is an ideal building block of next-generation on-chip sensors for sensitive and specific trace gas detection by tunable diode laser absorption spectroscopy (TDLAS). (2021-02-02)

Researchers create novel photonic chip
Researchers at the George Washington University and University of California, Los Angeles, have developed and demonstrated for the first time a photonic digital to analog converter without leaving the optical domain. Such novel converters can advance next-generation data processing hardware with high relevance for data centers, 6G networks, artificial intelligence and more. (2021-02-02)

Researchers design next-generation photodetector
The new long-wavelength infrared photodetector from Professor Manijeh Razeghi could be used in night vision, optical communication, and thermal and medical imaging. (2021-02-02)

Optimized LIBS technique improves analysis of nuclear reactor materials
In a new study, investigators report an optimized approach to using laser-induced breakdown spectroscopy (LIBS) for analyzing hydrogen isotopes. Their new findings could enable improved rapid identification and measurement of hydrogen and other light isotopes that are important in nuclear reactor materials and other applications. (2021-02-01)

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)

Physicists develop record-breaking source for single photons
Researchers at the University of Basel and Ruhr University Bochum have developed a source of single photons that can produce billions of these quantum particles per second. With its record-breaking efficiency, the photon source represents a new and powerful building-block for quantum technologies. (2021-01-28)

Lasing mechanism found in water droplets
As reported in Advanced Photonics, Chen's NTU team recently discovered that when a water droplet interacts with a surface to form a contact angle, the interfacial molecular forces determine the geometry of a droplet resonator. Dramatic mechanical changes at the interface play a significant role in the optical oscillation of droplet resonators. (2021-01-28)

Juicing technique could influence healthfulness of fresh-squeezed juice
With the New Year, many people are making resolutions to eat healthier, by eating more vegetables, for example. But those who don't like the taste or texture of some vegetables might prefer to drink them in a home-squeezed juice. Now, researchers reporting in ACS Food Science & Technology have found that the choice of household juicing technique can influence the phytochemical content and antioxidant activity of common vegetable juices. (2021-01-27)

Focusing on field analysis
One potential approach to developing a low-cost portable microscopy system is to use transparent microspheres in combination with affordable low-magnification objective lenses to increase image resolution and sensitivity. (2021-01-27)

Optical scanner design for adaptive driving beam systems can lead to safer night driving
In a recent study published in the Journal of Optical Microsystems, researchers from Japan have come up with an alternative to conventional adaptive driving beam systems: a microelectromechanical systems (MEMS) optical scanner that relies on the piezoelectric effect of electrically induced mechanical vibrations. (2021-01-27)

A metalens for virtual and augmented reality
Harvard researchers have developed a two-millimeter achromatic metalenses that can focus RGB (red, blue, green) colors without aberrations and developed a miniaturized display for virtual and augmented reality applications. (2021-01-27)

First direct band gap measurements of wide-gap hydrogen using inelastic X-ray scattering
Utilizing a newly developed state-of-the-art synchrotron technique, a group of scientists led by Dr. Ho-kwang Mao, Director of HPSTAR, conducted the first-ever high-pressure study of the electronic band and gap information of solid hydrogen up to 90 GPa. (2021-01-26)

Microstructured optical fibers find their 3D-printed groove
Advanced laser-printing techniques prove ideal for creating tiny optical communication devices with complex internal structures. (2021-01-25)

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