28 July 2012 Current Affairs
World’s smallest semiconductor laser created
Scientists have developed the world’s smallest semiconductor laser, a breakthrough that they say will lead to the development of faster, smaller and lower energy photon-based technologies for treating and studying diseases. Physicists at The University of Texas in collaboration with colleagues in Taiwan and China, have developed the world’s smallest semiconductor laser, a technology for emerging photonic technology with applications from computing to medicine, according to a report published in the journal ‘Science’. The device is constructed of a gallium nitride nano rod that is partially filled with indium gallium nitride. Both alloys are semiconductors used commonly in LEDs.The nano laser is too small to be visible to the naked eye and when fired, it emits a green light.
Siling Shots Down First Gold
China’s world number one Yi Siling won the first gold of the London Olympics in the women’s 10 air rifle competition at ‘London’s Royal Artilley Barracks on 28 July 2012.
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