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Simulations Reveal Material with Record-Setting Melting Point

Using advanced computers and a computational technique to simulate physical processes at the atomic level, researchers at Brown University have predicted that a material made from hafnium, nitrogen, and carbon would have the highest known melting point: 4,400 kelvins (7,460 degrees Fahrenheit), about two-thirds the temperature at the surface of the sun.

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Molds for Medical Technology

The demand for productivity in the field of medical consumables is consistently growing at a rapid rate. The growth of the world’s population, expanding urbanization, aging societies, and increasing self-medication are contributing to this growing demand, despite manufacturers’ limited production space. Costs continue to rise, and manufacturers are increasingly looking at stack molds for their capability to double the output while reducing waste.

Posted in: White Papers, White Papers

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Physicist Develops New Laser Technique to Study Electronic Properties

It’s often said that necessity is the mother of invention. Such was the case for Ames Laboratory physicist Adam Kaminski who took a challenge he was facing and turned it into a new solution that will help advance his research. 

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Theory Turns into Reality for Nonlinear Optical Metamaterials

A research team has realized one of the long-standing theoretical predictions in nonlinear optical metamaterials: creation of a nonlinear material that has opposite refractive indices at the fundamental and harmonic frequencies of light. Such a material, which doesn’t exist naturally, had been predicted for nearly a decade.

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Industrial Picosecond Lasers

Spark Lasers, a start-up currently in incubation at ALPhANOV (Talence, France), has introduced two new industrial picosecond lasers. Sirius and Vegas provide excellent beam quality with a linear polarization at a wavelength of 1064 nm. Vegas is a fiber laser producing 100ps pulse durations with an energy exceeding 40 μJ at a repetition rate up to 1 MHz. Sirius produces a pulse duration of less than 10 ps with an energy per pulse reaching 100μJ. Spark products are also available in the visible at 532nm and in the ultraviolet at 355 nm, still in a compact format.

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VCSEL-Based Miniature Line Generator

Princeton Optronics Inc. (Mercerville, NJ) has introduced a VCSEL-based miniature line generator. The wavelength of the line generator is in the 820- 840nm range, has a 20mW CW power output, a fan angle of 80 degrees, line uniformity of 75-85%, a 1/e2 linewidth of 2.5mm at a distance of 50 cm. The size of the line generator is 4x6x5mm. Such products can be made using Princeton Optronics VCSELs at wavelengths from red to 1064nm, with output power up to several hundred mW. The line generators are used in applications such as machine vision, consumer electronics and instrumentation.

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Algorithm Magnifies Motions Indiscernible to the Naked Eye

MIT has been investigating techniques for amplifying movements captured by video, but indiscernible to the human eye. The algorithms can make the human pulse visible and even recover intelligible speech from the vibrations of objects filmed through soundproof glass. A new version of the algorithm can amplify small motions even when they’re contained within objects executing large motions. So, for instance, it could make visible the precise sequence of muscle contractions in the arms of a baseball player swinging the bat, or in the legs of a soccer player taking a corner kick.

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