Examinando por Autor "Arias, Julia"

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Incorporation of carrier capture and escape processes into a self-consistent cw model for Quantum Well lasers
(Elsevier, 2003) Borruel, Luis; Arias, Julia; Romero, Beatriz; Esquivias, Ignacio
We describe a one-dimensional model for the simulation of the cw properties of Quantum Well laser diodes, which incorporates self-consistently the carrier capture/escape processes into the complete semiconductor equations. The approach is applied to simulate some laser structures properties that can only be described considering carrier capture effects. We point out the importance of these processes in the performance of high power laser diodes operating under cw conditions
Simple model for calculating the ratio of the carrier capture and escape times in quantum-well lasers
(American institute of Physics, 2000-03-20) Romero, Beatriz; Arias, Julia; Esquivias, Ignacio; Cada, Michael
We have developed a simple model for the carrier capture and escape processes in quantum-well (QW) lasers, which yields an analytical expression for the ratio of the carrier capture and escape times. It predicts a decrease in the escape time with injected carrier density due to the state filling effect. It also shows an exponential dependence of the escape time on the effective barrier height and on the inverse of the temperature. A comparison between experimental and calculated values for InGaAs/GaAs QW lasers is presented showing a good agreement