By a News Reporter-Staff News Editor at Electronics Newsweekly -- Current study results on Nanowires have been published. According to news reporting originating in Canberra, Australia, by VerticalNews journalists, research stated, "Near-infrared lasers are important for optical data communication, spectroscopy and medical diagnosis. Semiconductor nanowires offer the possibility of reducing the footprint of devices for three-dimensional device integration and hence are being extensively studied in the context of optoelectronic devices(1,2)."
The news reporters obtained a quote from the research from Australian National University, "Although visible and ultraviolet nanowire lasers have been demonstrated widely(3-11), progress towards room-temperature infrared nanowire lasers has been limited because of material quality issues and Auger recombination(12,13). (Al)GaAs is an important material system for infrared lasers that is extensively used for conventional lasers. GaAs has a very large surface recombination velocity, which is a serious issue for nanowire devices because of their large surface-to-volume ratio(14,15). Here, we demonstrate room-temperature lasing in core-shell-cap GaAs/AlGaAs/GaAs nanowires by properly designing the Fabry-Perot cavity, optimizing the material quality and minimizing surface recombination."
According to the news reporters, the research concluded: "Our demonstration is a major step towards incorporating (Al) GaAs nanowire lasers into the design of nanoscale optoelectronic devices operating at near-infrared wavelengths."
For more information on this research see: Optically pumped room-temperature GaAs nanowire lasers. Nature Photonics, 2013;7(12):963-968. Nature Photonics can be contacted at: Nature Publishing Group, Macmillan Building, 4 Crinan St, London N1 9XW, England. (Nature Publishing Group - www.nature.com/; Nature Photonics - www.nature.com/nphoton/)
Our news correspondents report that additional information may be obtained by contacting D. Saxena, Australian National University, Res Sch Phys & Engn, Dept. of Elect Mat Engn, Canberra, ACT 0200, Australia. Additional authors for this research include S. Mokkapati, P. Parkinson, N. Jiang, Q. Gao, H.H. Tan and C. Jagadish.
Keywords for this news article include: Canberra, Nanotechnology, Optoelectronics, Emerging Technologies, Australia and New Zealand
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