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interferometers News
Combined Techniques Image Movement of Confined Light
SAN SEBASTIAN, Spain, Sept. 17, 2015 — A combined interferometric and microscopy technique has revealed the strange ways in which light moves when confined inside hyperbolic materials. Researchers at CIC nanoGUNE in the Basque Country and the Institute of Photonic Sciences (ICFO) in Catalunya have observed, for the first time, ultraslow pulse propagation and backward propagating waves in a subwavelength-scale (135-nm) slab of boron nitride, a natural material that exhibits hyperbolic optical properties at mid-infrared
Gas-Sensing MEMS Interferometer Connects to Smartphones
ESPOO, Finland, Aug. 14, 2015 — Air and sleep quality can be gauged by an optical gas sensor that attaches to smartphones. The VTT Technical Research Centre of Finland developed the device, which is based on Fabry-Perot interferometers and microelectromechanical systems (MEMS). It...
PG&O Tapped for Gravitational Wave Project
SANTA ANA, Calif., July 17, 2015 — Precision Glass & Optics has been selected to manufacture four sets of 26 unique, black glass optics panels for the Laser Interferometric Gravitational Wave Observatory (LIGO). LIGO consists of two large interferometers in Hanford, Wash., and...
Interferometric Technique Targets Protein Shadows
ERLANGEN, Germany, Sept. 24, 2014 — A new optical method for targeting proteins could mean earlier diagnosis and more effective treatment for cancer.
Ametek Acquires Amptek and Luphos
BERWYN, Pa., Aug. 6, 2014 — Ametek Inc., a global manufacturer of electronic instruments and electromechanical devices, has acquired Amptek Inc. and Luphos GmbH. Amptek provides x-ray detectors that utilize x-ray fluorescence for nondestructive materials analysis. Luphos...
Fiber optic links may show height differences between optical clocks
GARCHING and BRAUNSCHWEIG, Germany – A new approach transporting frequencies via commercially available fiber makes it possible to use optical atomic clocks to precisely measure height differences between locations thousands of kilometers apart, a development that could have...
Interferometry Offers Accurate Wavelength Measurements
Dec 1, 2013 — New solutions for fast and accurate wavelength measurements use interferometer technology, which offers a number of benefits compared with classic spectrum analysis. As soon as highly accurate wavelength measurements are required, calibration and...
Zygo Team Wins Engineering Award for Metrology
MIDDLEFIELD, Conn., Oct. 10, 2013 — The Zygo Automotive Precision Optical Metrology team has won the 2013 Paul F. Forman Engineering Excellence Award from The Optical Society (OSA), the company recently announced. In presenting the award at the Frontiers in Optics (FiO 2013) meeting...
Fiber Optic Links May Show Height Differences Between Optical Clocks
GARCHING and BRAUNSCHWEIG, Germany, Oct. 7, 2013 — A new approach uses optical atomic clocks to precisely measure height differences between locations thousands of kilometers apart, a development that could have implications for quantum mechanics, geodesy and radio astronomy. Researchers from the...
Achromatic Beam Expanders
SURREY, England, Sept. 13, 2013 — Optical Surfaces Ltd. has released achromatic beam expanders with off-axis mirrors to provide unobstructed output and efficient transmission for applications in high-power lasers, laser scanning, interferometry, lidar systems and remote sensing. The...
Optical Coatings Take a Leap Forward
VIENNA, and BOULDER, Colo., July 23, 2013 — A novel crystalline coating technique that produces low-loss mirrors could help accelerate progress in the development of lasers for precision measurement applications.
Photonics Finding Niche in Device Manufacturing
Jul 1, 2013 — The global medical device market grew just 3 percent in 2012, reaching $331 billion dollars, according to health care market research firm Kalorama Information. The organization blames the reduced growth rate on a challenged health care market in...
Optical accelerometer could transform microelectronics
PASADENA, Calif. – An ultrasensitive miniature optical accelerometer uses laser light rather than electrical circuits to gauge movement, a change that could transform the microelectronics industry. The optical cavity of the accelerometer, developed at California...
Quantum mystery of light revealed
BRISTOL, UK, and NICE, France – A unique setup involving an integrated photonic quantum chip in a quantum beamsplitter is helping to answer one of the most fundamental questions in physics: Is light made of waves or particles? Debates on the particle-wave theories of light have...
Photons Observed as Particles, Waves Simultaneously
BRISTOL, England, and NICE, France, Nov. 5, 2012 — It is well-known that photons can act like waves or particles, depending on how they are measured experimentally. But they have never been seen exhibiting both behaviors at the same time — until now. The particle-wave theories of light were...
Microscale Optical Accelerometer Engineered
PASADENA, Calif., Oct. 24, 2012 — An ultrasensitive, miniature optical accelerometer uses laser light rather than electrical circuits to gauge movement, a change that could transform the microelectronics industry, its creators say.
Atom Optics Comes of Age
GREENBELT, Md., Oct. 19, 2012 — NASA is funding atom interferometry, a variation on the 200-year-old optical technique, in the belief that the emerging, highly precise measurement technology will allow the detection of ripples in space-time and other events.
Laser Stability Improved by an Order of Magnitude
BOULDER, Colo., Sept. 12, 2012 — A laser so stable that its frequency varies by no more than two parts in 10,000 trillion represents an approach for constructing high-quality optical cavities that improve prior designs by more than an order of magnitude. The laser was developed and...
Aspheres Deal with Bigger Deviations
Jul 1, 2012 — New tools and the integration of measurement capabilities into design software are helping to solve problems – and scientists in academic and government laboratories are researching tomorrow’s solutions. Aspheres are increasingly used...
Webb Telescope Tech Spinning Off
GREENBELT, Md., April 30, 2012 — A stitching technique that improves large asphere measurement and wavefront sensing for the measurement of eye health are among four commercial applications to have spun off new technologies developed for NASA’s James Webb Space Telescope.
Biochip Measures Glucose in Saliva, Not Blood
PROVIDENCE, R.I., Jan. 24, 2012 — For the 26 million Americans with diabetes, drawing blood, which is invasive and at least minimally painful, is the most prevalent method of checking glucose levels. Now researchers at Brown University are working on a new biological device that...
Squeezed light helps measure gravitational waves
HANNOVER, Germany – A new “squeezed light” method improves the sensitivity and accuracy of the interferometers used to measure gravitational waves. Observing the gravitational waves that result from supernova explosions and other cosmic events requires...
The Birth – and Growth – of Glass Ceramics
Oct 1, 2011 — When glass ceramics were first created in the 1950s, these novel optical materials rightfully caused a stir, and they remain widely desired today for a range of semiconductor, military sensing and astronomy applications. Glass ceramics are...
‘Squeezed Laser’ Boosts Interferometer Accuracy
HANNOVER, Germany, Sept. 14, 2011 — Gravitational waves, though yet to be observed, were first predicted by Einstein in his theory of relativity. Observing these massive astronomical events, which generate tiny fluctuations and cause the fabric of space-time to expand and contract...
“Optics table on a chip” superpositions photons
GAITHERSBURG, Md. – A tiny, tunable superconducting circuit can place a single microwave photon in two frequencies simultaneously, potentially leading to the long-sought “optics table on a chip.” Researchers at the National Institute of Standards and...
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May 2024
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