ScienceDaily (Aug. 22, 2012) — Working in collaboration with their partners under the EU's "Subtune" project, scientists at the TU Darmstadt have developed semiconductor lasers that emit light over a wavelength range of 100 nm, a new world record for a single semiconductor laser. Such lasers might allow more efficient, lower-cost operation of future fiberoptic telecommunications networks and the development of high-responsivity gas sensors.
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Surface-emitting semiconductor lasers emit light at a right angle to the plane of the semiconducting wafer on which they have been fabricated. They require very little power for their operation and are thus utilized as light sources on, e.g., computer mice and laser printers. Christian Gierl and Karolina Zogal of the TU
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Surface-emitting semiconductor lasers emit light at a right angle to the plane of the semiconducting wafer on which they have been fabricated. They require very little power for their operation and are thus utilized as light sources on, e.g., computer mice and laser printers. Christian Gierl and Karolina Zogal of the TU