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JOURNAL OF APPLIED PHYSICS
Volume 98, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2037867
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We report the demonstration of visible laser action on silicon. We have utilized Eu-doped GaN for the active medium within a structure consisting of multiple AlGaN layers grown by molecular-beam epitaxy on a Si substrate. Stimulated emission was obtained at room temperature from Eu3+ at 620 nm, with a threshold of similar to 117 kW/cm(2). Values of modal gain and loss of similar to 100 and 46 cm(-1) were measured. This demonstration indicates that utilizing rare earths a range of lasers on Si can be obtained, covering the UV, visible, and IR regions, thus enabling a significant expansion of optoelectronic and microelectronic integrations. (c) 2005 American Institute of Physics.
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