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Preview: Brightsurf Science News :: Optics News

Optics Current Events and Optics News from Brightsurf

Optics Current Events and Optics News Events, Discoveries and Articles from Brightsurf

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Scientists invented method of catching bacteria with 'photonic hook'

Mon, 19 Mar 18 00:03:30 -0700

An international research team discovered a new type of curved light beams, dubbed a

New optical modules could improve thyroid cancer screening

Mon, 19 Mar 18 00:03:50 -0700

A team of international researchers developed a point of care device that could enable consistent and cost-effective screening for thyroid nodules.

Compact fiber optic sensor offers sensitive analysis in narrow spaces

Thu, 15 Mar 18 00:10:40 -0700

Researchers have developed a new flexible sensor with high sensitivity that is designed to perform variety of chemical and biological analyses in very small spaces.

Holography approach improves heads up displays for planes and cars

Mon, 12 Mar 18 00:14:40 -0700

Heads-up displays are transparent devices used in airplanes and cars to provide information such as critical flight data or driving directions on the windshield. An innovative holography-based approach could soon make these heads-up displays much easier to see with a large eye box.

NASA's James Webb Observatory prepares for additional testing

Mon, 12 Mar 18 00:04:10 -0700

Engineers removed the combined optics and science instruments of NASA's James Webb Space Telescope from their shipping container in a high bay at Northrop Grumman Aerospace Systems in Redondo Beach, California, on March 8, signaling the next step in the observatory's integration and testing.

Researchers reshape the energy landscape of phonons in nanocrystals

Tue, 06 Mar 18 00:01:10 -0800

Phonons, which are packets of vibrational waves that propagate in solids, play a key role in condensed matter and are involved in various physical properties of materials. In nanotechnology, for example, they affect light emission and charge transport of nanodevices. As the main source of energy dissipation in solid-state systems, phonons are the ultimate bottleneck that limits the operation of functional nanomaterials.

Roton quasiparticles observed in quantum gas

Mon, 05 Mar 18 00:11:10 -0800

An team of physicists from Innsbruck and Hannover has for the first time observed so-called roton quasiparticles in a quantum gas. Empirically introduced by Landau to explain the bizarre properties of superfluid liquid Helium, these quasiparticles reflect an 'energy softening' in the system as precursor of a crystallization instability. The new work published in Nature Physics demonstrate similar phenomena in the quantum-gas phase thanks to magnetic interactions, paving the way for a novel understanding of paradigmatic states of quantum fluids, such as supersolids.

Lightweight hyperspectral imagers bring sophisticated imaging capability to drones

Wed, 28 Feb 18 00:02:50 -0800

In a new study, researchers used 3-D printing and low-cost parts to create an inexpensive hyperspectral imager that is light enough to use onboard drones. They offer a recipe for creating these imagers, which could make the traditionally expensive analytical technique more widely accessible.

Quantum optics: Attosecond pulses break into atomic interior

Tue, 27 Feb 18 00:16:20 -0800

Munich based physicists have been able to observe the interaction of multiple photons in a single attosecond pulse with electrons in the inner orbital shell of an atom for the first time. To this end they generated attosecond bursts of high-energy photons of unprecedented intensity.

Squid skin could be the solution to camouflage material

Tue, 27 Feb 18 00:00:50 -0800

Squids and octopuses are masters of disguise and humans have long envied their camouflage capabilities. A Northeastern University chemistry professor teamed up with the U.S. Army to find out how these colorful creatures do it. She turned the animal's pigment particles into spools of fiber that can be used for a number of things.

MSU-based scientists found out how to distinguish beams of entangled photons

Tue, 27 Feb 18 00:03:00 -0800

A team from the Faculty of Physics, MSU developed a method for creating two beams of entangled photons to measure the delay between them. In the future the results of the study may be used in high-precision measurements, material studies, and informational technologies. The article was published in Optics Letters journal.

New research reports advances in measuring blood flow velocity in deep tissue

Tue, 27 Feb 18 00:10:50 -0800

The first photoacoustic measurements of blood flow using a handheld ultrasound unit that edges acoustic resolution-photoacoustic flowmetry (AR-PAF) closer to clinical use, has been reported by researchers from University College London and the University of Twente. Their work is outlined in an article in the Journal of Biomedical Optics published by SPIE, the international society for optics and photonics.

Attosecond physics: A keen sense for molecules

Fri, 23 Feb 18 00:04:30 -0800

Munich based Laser physicists have developed an extremely powerful broadband infrared light source. This light source opens up a whole new range of opportunities in medicine, life science, and material analysis.

Astronomers discover S0-2 star is single and ready for big Einstein test

Wed, 21 Feb 18 00:15:10 -0800

A team of astronomers led by Devin Chu, a UCLA scientist from Hawaii, has found that S0-2 does not have a significant other after all, or at least one that is massive enough to get in the way of critical measurements that astronomers need to test Einstein's Theory of General Relativity. Up until now, it was thought that S0-2 may be a binary, a system where two stars circle around each other.

MEMS chips get metatlenses

Tue, 20 Feb 18 00:02:30 -0800

Lens technologies have advanced across all scales, from digital cameras and high bandwidth in fiber optics to the LIGO instruments. Now, a new lens technology that could be produced using standard computer-chip technology is emerging and could replace the bulky layers and complex geometries of traditional curved lenses. Researchers at Harvard and Argonne National Laboratory have developed a device that integrates mid-infrared spectrum metalenses onto MEMS. They report their work in this week's APL Photonics.

Powerful LED-based train headlight optimized for energy savings

Tue, 13 Feb 18 00:02:40 -0800

Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the electricity savings of the new design would reduce emissions of the greenhouse gas carbon dioxide by about 152 kilograms per year.

Hybrid optics bring color imaging using ultrathin metalenses into focus

Mon, 12 Feb 18 00:06:20 -0800

In a paper published Feb. 9 in Science Advances, scientists at the University of Washington announced that they have successfully combined two different imaging methods -- a type of lens designed for nanoscale interaction with lightwaves, along with robust computational processing -- to create full-color images.

Tricking photons leads to first-of-its-kind laser breakthrough

Mon, 12 Feb 18 00:10:50 -0800

A team of optics researchers from the University of Central Florida has demonstrated the first-ever nonmagnetic topological insulator laser, a finding that has the potential to substantially improve the efficiency, beam quality, and resilience of semiconductor laser arrays.

Forging a quantum leap in quantum communication

Fri, 09 Feb 18 00:04:10 -0800

The major drawback of quantum communication today is the slow speed of data transfer, which is limited by the speed at which the parties can perform quantum measurements. Researchers at Bar-Ilan University have devised a method that overcomes this

Researchers create fiber optic sensors that dissolve in the body

Mon, 05 Feb 18 00:14:30 -0800

For the first time, researchers have fabricated sensing elements known as fiber Bragg gratings inside optical fibers designed to dissolve completely inside the body.

New technique can capture images of ultrafast energy-time entangled photon pairs

Thu, 01 Feb 18 00:09:40 -0800

Scientists at the Institute for Quantum Computing (IQC) at the University of Waterloo have captured the first images of ultrafast photons that are energy-time entangled. The new technique will have direct applications for quantum cryptography and communication protocols, including the possibility for establishing highly secure communication channels over long distances.

Biomechanical mapping method aids development of therapies for damaged heart tissue

Tue, 23 Jan 18 00:02:10 -0800

Researchers have developed a new way to capture the detailed biomechanical properties of heart tissue. The high-resolution optical technique fills an important technology gap necessary to develop and test therapies that might eventually be used to heal heart damage after a heart attack.

New instrument lets doctors view the entire eye with unprecedented level of detail

Thu, 18 Jan 18 00:15:10 -0800

Researchers have developed the first instrument that can provide a detailed image of the entire eye that can produce higher quality images than currently available.

Ultra-thin optical fibers offer new way to 3-D print microstructures

Wed, 17 Jan 18 00:13:20 -0800

For the first time, researchers have shown that an optical fiber as thin as a human hair can be used to create microscopic structures with laser-based 3-D printing. The innovative approach might one day be used with an endoscope to fabricate tiny biocompatible structures directly into tissue inside the body.

Gyroscopes lead scientists to unusual state of matter in a disorganized structure

Mon, 15 Jan 18 00:15:00 -0800

You don't have to be perfectly organized to pull off a wave, according to University of Chicago scientists. Using a set of gyroscopes linked together, physicists explored the behavior of a material whose structure is arranged randomly, instead of an orderly lattice. They found they could set off one-way ripples around the edges, much like spectators in a sports arena -- a 'topological wave,' characteristic of a particularly unusual state of matter.

Once revolutionary, now dominant: OCT still shows rich potential for new applications

Wed, 10 Jan 18 00:14:20 -0800

The revolutionizing technology of optical coherence tomography (OCT) is celebrated in a special section of the Journal of Biomedical Optics, published by SPIE, the international society for optics and photonics. Detailed to the microscopic scale and noninvasive, OCT yields 3-D images of tissues inside the body and is a dominant diagnostic tool in ophthalmology with potential in numerous other areas.

Molecular imaging technique identifies lung nodules for resection in osteosarcoma patient

Fri, 05 Jan 18 00:14:40 -0800

Utility of near-infrared molecular imaging in a patient undergoing pulmonary metastasectomy for osteosarcoma has been reported by researchers from Perelman School of Medicine at the University of Pennsylvania and Purdue University. The work is reported in an article in the Journal of Biomedical Optics published this week by SPIE, the international society for optics and photonics.

NRL improves optical efficiency in nanophotonic devices

Thu, 04 Jan 18 00:01:20 -0800

Nanophotonic devices have direct applications for use in ultra-high resolution microscopes, solar energy harvesting, optical computing and targeted medical therapies.

Now entering, lithium niobate valley

Thu, 21 Dec 17 00:05:30 -0800

Lithium niobate is already one of the most widely used optical materials, well-known for its electro-optic properties but it is notoriously difficult to fabricate high-quality devices on a small scale using lithium niobate, an obstacle that has so far ruled out practical integrated, on-chip applications. Now, Harvard researchers have developed a technique to fabricate high-performance optical microstructures using lithium niobate, opening the door to ultra-efficient integrated photonic circuits, quantum photonics, microwave-to-optical conversion and more.

Powerful new tool for looking for life beyond Earth

Wed, 20 Dec 17 00:01:30 -0800

NASA has developed an innovative new spectroscopy instrument to aid the search for extraterrestrial life. The new instrument is designed to detect compounds and minerals associated with biological activity more quickly and with greater sensitivity than previous instruments.

Superradiance of an ensemble of nuclei excited by a free electron laser

Fri, 15 Dec 17 00:11:40 -0800

A collaboration of scientists has succeeded in verifying a basic prediction of the quantum-mechanical behavior of resonant systems. In the study published in Nature Physics, they were able to carefully follow, one x-ray at a time, the decay of nuclei in a perfect crystal after excitation with a flash of x-rays. They observed a dramatic reduction of the time taken to emit the first x-ray as the number of x-rays increased.

A shoe-box-sized chemical detector

Fri, 15 Dec 17 00:14:50 -0800

A chemical sensor prototype developed at the University of Michigan will be able to detect 'single-fingerprint quantities' of substances from a distance of more than 100 feet away, and its developers are working to shrink it to the size of a shoebox.

New type of smart windows use liquid to switch from clear to reflective

Wed, 13 Dec 17 00:11:20 -0800

Researchers have demonstrated prototype windows that switch from reflective to clear with the simple addition of a liquid. The new switchable windows are easy to manufacture and could one day keep parked cars cool in the sun or make office buildings more energy efficient.

Glass with switchable opacity could improve solar cells and LEDs

Mon, 11 Dec 17 00:08:10 -0800

Researchers at the University of Pittsburgh, Pennsylvania have created glass that lets through a large amount of light while appearing hazy, a combination of properties that could help boost the performance of solar cells and LEDs.

Novel lenses enable X-ray microscopy with record resolution

Thu, 07 Dec 17 00:09:50 -0800

Scientists at DESY have developed novel lenses that enable X-ray microscopy with record resolution in the nanometer regime. Using new materials, the research team has perfected the design of specialized X-ray optics and achieved a focus spot size with a diameter of less than 10 nanometers. The researchers report their work in the journal Light: Science and Applications. They successfully used their lenses to image samples of marine plankton.

Innovative system images photosynthesis to provide picture of plant health

Thu, 07 Dec 17 00:11:10 -0800

Researchers have developed a new imaging system that is designed to monitor the health of crops in the field or greenhouse. The new technology could one day save farmers significant money and time by enabling intelligent agricultural equipment that automatically provides plants with water or nutrients at the first signs of distress.

Mount Sinai researchers use breakthrough technology to understand eclipse eye damage

Thu, 07 Dec 17 00:14:40 -0800

Research could lead to new treatment for solar retinopathy.