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Corrective 'Eyeglasses' Created For X-Ray Research Facilities

Even when an X-ray beam is steered and focused with advanced mirrors and other optics, abnormalities can creep in. These problems have names familiar to those with imperfect vision, such as “astigmatism” or “coma” and “spherical” errors. And just like our eyes, an X-ray beam can lose power and focus when its alignment isn’t perfect. To address this challenge with X-rays, researchers designed and built special spectacles, or corrective phase plates, for use at light sources that use high-intensity X-rays to probe matter in fine detail.

Posted in: News, ptb catchall, Imaging, Optical Components, Photonics

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Researchers Craft New Material That Could Improve LED Screens

Researchers working at the Ultrafast Laser Lab at the University of Kansas successfully created a new bilayer material, with each layer measuring less than one nanometer in thickness. The new material, that someday could lead to more efficient and versatile light emission, was made by combining atomically thin layers of molybdenum disulfide and rhenium disulfide.

Posted in: News, ptb catchall, LEDs, Powering & Controlling LEDs, Materials, Optical Components, Optics, Photonics

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Optical Generation of Ultrasound Via Photoacoustic Effect

Limitations of the piezoelectric array technologies conventionally used for ultrasonics inspired a group of University College London researchers to explore an alternative mechanism for generating ultrasound via light, also known as the photoacoustic effect. Coupling this with 3-D printing, the group was able to generate sound fields with specific shapes for potential use in biological cell manipulation and drug delivery.

Posted in: News, ptb catchall, Optical Components, Optics, Photonics

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Researchers Find 'Golden' Idea for New Wearables

Researchers at Missouri University of Science and Technology have developed a way to “grow” thin layers of gold on single crystal wafers of silicon, remove the gold foils, and use them as substrates on which to grow other electronic materials. The discovery could lead to new wearable developments, including a smartphone that conforms entirely to one's wrist.

Posted in: News, Materials

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NASA Satellite Data Supports Global Maps of Volcanic Emissions

Volcanoes around the world continuously exhale ash and water vapor laced with heavy metals, carbon dioxide, hydrogen sulfide, and sulfur dioxide. Researchers from Michigan Technological University created the first, truly global inventory for volcanic sulfur dioxide emissions.

Posted in: News, Imaging

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Advanced Sensor Enables Ultrafast Camera for Self-Driving Vehicles and Drones

Scientists from Nanyang Technological University in Singapore developed an ultrafast high-contrast camera that could help self-driving cars and drones see better in extreme road conditions and in bad weather. Unlike typical optical cameras, which can be blinded by bright light and unable to make out details in the dark, NTU’s new smart camera can record the slightest movements and objects in real time.

Posted in: News, Cameras

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Low-Cost Device uses Light to Detect Oil Spills

Researchers have developed a simple device that can detect an oil spill in water and then pinpoint the type of oil present on the surface. The device is designed to float on the water, where it could remotely monitor a small area susceptible to pollution or track the evolution of contamination at a particular location.

Posted in: News, Test & Measurement

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