An international team of scientists constructs the first #Germanium-tin semiconductor laser for silicon chips >>creates a new basis for transmitting data on computer chips via light: this transfer is #faster than is possible with copper wires and requires only a #fraction of the #energy. The laser beam is not visible to the naked eye. #GeSn absorbs and emits light in a wavelength range of about 3 micrometres. Many carbon compounds, such as #greenhouse gases or biomolecules, also display strong absorption lines at this boundary between near and mid-wavelength infrared. Hence, they offer possibility of detecting these compounds. + New #applications that have not been pursued so far for financial reasons: #Gas #sensors or implantable chips for #medical applications which can gather information about blood sugar levels or other parameters via spectroscopic analysis are examples. In the future, cost-effective, portable sensor technology – which may be integrated into a smart phone – could supply real-time data on the distribution of substances in the air or the ground and thus contribute to a better understanding of weather and #climate development. fz-juelich.de/SharedDocs/Pressemitteilungen/UK/EN/2015/15-01-19gesn-laser.html
Posted on: Mon, 19 Jan 2015 19:54:29 +0000
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