1. Articles from PhysOrg.com

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    1. Imaging method for eye disease used to eye art forgeries

      Imaging method for eye disease used to eye art forgeries
      Scientists in Poland are describing how a medical imaging technique has taken on a second life in revealing forgery of an artist's signature and changes in inscriptions on paintings that are hundreds of years old. A report on the technique, called optical coherence tomography (OCT), is in ACS' Accounts of Chemical Research. Piotr Targowski notes that easel paintings prepared according to traditional techniques consist of multiple layers. The artist, for instance, first applies a glue sizing over the canvas to ensure proper adhesion of later layers. Those layers may include an outline of the painting, the painting itself, layers ...
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    2. New device finds early signs of eye disease in preemies

      The technology, developed in part by Duke biomedical engineers, uses spectral domain optical coherence tomography (SD OCT) to create a 3-D picture of the back of the eye. "This new tool is changing the way we identify eye conditions in infants," says Cynthia Toth, MD, an ophthalmologist at the Duke Eye Center, who is leading the study that appears online this month in the journal Ophthalmology. Retinopathy of prematurity (ROP) is one of the most common causes of vision loss in children, affecting about 16,000 babies each year, according to the National Eye Institute. It occurs when babies are ...
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    3. Technology Gives 3-D View of Human Coronary Arteries

      Technology Gives 3-D View of Human Coronary Arteries
      For the first time researchers are getting a detailed look at the interior of human coronary arteries, using an optical imaging technique developed at the Wellman Center for Photomedicine at Massachusetts General Hospital (MGH). In their report in the journal JACC: Cardiovascular Imaging, the research team describes how optical frequency-domain imaging (OFDI) gives three-dimensional, microscopic views of significant segments of patients' coronary arteries, visualizing areas of inflammation and plaque deposits.
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    4. Physicists develop laser with bandwith spanning 2 telecom windows

      A team of physicists in the Institute for Ultrafast Spectroscopy and Lasers (IUSL) of the Physics Department at The City College of New York (CCNY) have developed new near-infrared broadband laser materials with tunability ranges around triple those of earlier crystals. The new crystals have a tunability range of as much as 460 nanometers (nm) and have potential application in such fields as ...
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