Browsing by Author "Martinez-Rosas, Miguel"

Now showing items 1-3 of 3

    • Dynamic Pump-probe studies of TE and TM modes in semiconductor optical amplfiers 

      Bradley, Louise; Philippe, Severine; Landais, Pascal; Martinez-Rosas, Miguel; Surre, Frederick (2005)
      A contra-propagation set up is implemented and dynamic pump probe studies of a InGaAsP/InP SOA in the gain regime are undertaken using pulses of 2ps duration. The time resolved amplified probe signal is measured separately ...

    • Room-temperature ultraviolet luminescence from g-CuCl on silicon 

      Bradley, Louise; O'Reilly, Lisa; Lucas, Olabanji; McNally, Patrick; Reader, Alec; Natarajan, Gomathi; Daniels, Stephen; Cameron, David C.; Mitra, Anirban; Martinez-Rosas, Miguel (2005)
      We have probed the luminescence properties of a wide-band-gap, direct band-gap optoelectronic material, grown on closely lattice-matched silicon substrates, namely, γ-CuCl on Si. This material system is compatible with ...

    • The use of wide-bandgap CuCl on silicon for ultra-violet photonics 

      Bradley, Louise; O'Reilly, Lisa; Natarajan, Gomathi; McNally, Patrick; Daniels, Stephen; Lucas, Olabanji; Mitra, Anirban; Martinez-Rosas, Miguel; Reader, Alec; Cameron, David C. (2005)
      γ-CuCl is a wide-bandgap (Eg = 3.395eV), direct bandgap, semiconductor material with a cubic zincblende lattice structure. Its lattice constant, aCuCl = 0.541 nm, means that the lattice mismatch to Si (aSi = 0.543 nm) is ...