ARLINGTON, Va., Oct. 21 -- A novel way to use a laser to analyze breath exhalations opens the door to more accurate diagnosis and prescriptive treatment of asthma, according to the National Science Foundation (NSF). Patrick McCann at the University of Oklahoma, through an NSF research award, has coupled a laser spectroscopy system to a tunable laser to create a device that can accurately and simultaneously measure carbon dioxide and nitric oxide levels of a single exhalation of breath. The precise measurements provided by McCann's instrument might help doctors evaluate airway inflammation and...Read full articleRelated content from Photonics MediaArticlesOptical Imaging Circuit Bridges Timescales in High-Speed PhotographyUltrafast optical imaging is typically measured in picoseconds, whereas high-speed electronic cameras image at the millisecond and microsecond timescale. 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