Design and optimization of GaN/AlGaN quantum wells and Bragg confined structures for short wavelength (1.3/spl mu/m</spl lambda/<2/spl mu/m) intersubband absorption
作者： J. Radovanovic , Z. Ikonic , V. Jovanovic , V. Milanovic , D. Indin
DOI: 10.1109/ICMEL.2004.1314629
关键词:
摘要: A procedure is described for extracting the optimal structural parameters of AlGaN-based quantum wells and perturbed superlattices in order to achieve maximal intersubband absorption near infrared spectral range. Conventional are chosen their simplicity, while more complex structures relying on Bragg confinement exploited increase transition energy between two quantized states. The well barrier widths Al content both types varied such a way that peak kept constant, searching largest value dipole matrix element. internal polarization fields nonparabolicity effects were taken into account. Finally, set idealized structure was used perform fully self-consistent calculation realistic, short-period structures.
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