A system that will prevent a car from moving if the driver is drunk is being developed by the US government. The technology, which could be installed into vehicles in the next five years, uses lasers and infrared light to determine a person’s blood alcohol level in less than one second.
Italy and Spain are two of the biggest producers of olives for olive oil in the world, but disease and drought have put the industry under strain in the past year. This has driven up prices of olive oil to their highest in a decade according to The Independent. The newspaper stated at the start of the year that production would fall from 3.27 million tons produced in 2013/2014 to 2.39 million tons in 2014/2015 with a metric ton costing $4,281.95, a rise of around $600 since the end of 2013.
Higher power lasers and ultrafast pulses are putting greater demands on the thin film coatings protecting the lenses in these systems. Complexity of thin films is increasing, with the number of layers reaching into the hundreds and coating runs lasting days. All of this requires precise deposition machines, and, in recent years, a number of companies have incorporated in-situ broadband optical monitoring into the coaters to improve precision and avoid costly errors.
‘Super’ is pretty apt for describing a light source that can emit the broad wavelengths of a lamp while providing the brightness and longer lifetimes of a laser. As witnessed at Laser World of Photonics, which took place from 22 to 25 June in Munich, Germany, manufacturers of supercontinuum laser sources are pushing the boundaries of light technology by expanding the wavelength ranges further than ever before.