Now showing items 1-4 of 4

    • Emergence of Very Broad Infrared Absorption Band by Hyperdoping of Silicon with Chalcogens 

      Umezu, Ikurou; Warrender, Jeffrey M.; Charnvanichborikarn, Supakit; Kohno, Atsushi; Williams, James S.; Tabbal, Malek; Papazoglou, Dimitris G.; Zhang, Xi-Cheng; Aziz, Michael J. (AIP Publishing, 2013)
      We report the near through mid-infrared (MIR) optical absorption spectra, over the range 0.05–1.3 eV, of monocrystalline silicon layers hyperdoped with chalcogen atoms synthesized by ion implantation followed by pulsed ...
    • Excimer Laser Processing of Novel Materials for Optoelectronic and Spintronic Applications 

      Tabbal, Malek; Aziz, Michael; Madi, Charbel; Charnvanichborikarn, Supakit; Williams, James S.; Christidis, Theodore C. (International Society for Optical Engineering, 2007)
      The interaction of the highly energetic pulsed excimer laser beam with a target material induces non-equilibrium physico-chemical processes which could be harnessed to synthesize a variety of novel and technologically ...
    • Formation of Single Crystal Sulfur Supersaturated Silicon Based Junctions by Pulsed Laser Melting 

      Tabbal, Malek; Kim, Taegon; Warrender, Jeffrey M.; Aziz, Michael; Cardozo, B.L.; Goldman, R.S. (American Vacuum Society, 2007)
      The authors demonstrate the formation of <i>pn</i> and <i>nn</i><sup>+</sup> junctions based on silicon supersaturated with sulfur (up to 0.46 at. %) using a combination of ion implantation and pulsed laser melting. ...
    • Point Defect Engineered Si Sub-Bandgap Light-Emitting Diode 

      Capasso, Federico; Aziz, Michael; Williams, James; Charnvanichborikarn, Supakit; Kim, Taegon; Tabbal, Malek; Bao, Jiming (2007)
      We extensively study the propagation features of higher-order modes in a photonic crystal fiber (PCF). Our analysis is based on a full-vector modal technique specially adapted to accurately describe light propagation in ...