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  • Robert Chen, Suyog Gupta, +7 authors James S. Harris
  • Materials Science, Medicine
  • Nano letters
  • 2014 (First Published: 8 January 2014)
  • We theoretically study and experimentally demonstrate a pseudomorphic Ge/Ge0.92Sn0.08/Ge quantum-well microdisk resonator on Ge/Si (001) as a route toward a compact GeSn-based laser on silicon. TheContinue Reading
  • Suyog Gupta, Robert Chen, +4 authors Krishna C. Saraswat
  • Materials Science, Medicine
  • Nano letters
  • 2013 (First Published: 14 August 2013)
  • We present a new etch chemistry that enables highly selective dry etching of germanium over its alloy with tin (Ge(1-x)Sn(x)). We address the challenges in synthesis of high-quality, defect-freeContinue Reading