Electronic Confinement in the Continuum: Leaky Bragg Mirror for Electrons

  • Vitor Bento Souza
  • Germano Maioli Penello
  • Pedro Henrique Pereira Pontifícia Universidade Católica do Rio de Janeiro
  • Deborah Sivco
  • Claire Gmachl
  • Mauricio Pamplona Pires
  • Patricia Lustoza Souza
Keywords: Quantum Well, Superlattice, Intersubband Transition, Leaky Electronics Satate in the Continuum, Photodetector


In this work we present an InGaAs/InAlAs heterostructure lattice matched with InP that holds two leaky electronic states in the continuum. An optical analogy with Bragg mirrors is used to explain the origin and the desired characteristics of the leaky electronic state. Multipass waveguide absorption measurements were performed and theoretical calculations used to determine the energy levels involved in the optical transitions. The comparison between the theoretical and experimental oscillator strength shows the good optical quality of the sample.

Selected Papers from 34th Symposium on Microelectronics Technology and Devices