Ultrafast reflectivity modulation in AlxGa1-xAs/InyAlxGa1-x-yAs multiple quantum well photonic crystal waveguides

A. Z. Garcia-Deniz, P. Murzyn, A. M. Fox, D. O. Kundys, J.-P. R. Wells, M. Whittaker, M. S. Skolnick, T. F. Krauss, J. S. Roberts

Research output: Contribution to journalArticle

Abstract

We report an ultrafast optical tuning of the reflectivity of AlxGa1-xAs/InyAlxGa1-x-yAs multiple quantum well photonic crystal waveguides using a reflection geometry, pump-probe technique. Nonlinear shifts of the photonic resonances between 800 and 900 nm are demonstrated with a measured response time of similar to 300-400 fs. The nonlinear shift is attributed to virtual carriers, with the response time determined by the pump pulse duration. This demonstrates ultrafast photonic switching in a high-contrast photonic structure based on III-V quantum wells.

Original languageEnglish
Article number165327
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume74
Issue number16
DOIs
Publication statusPublished - 15 Oct 2006

Keywords

  • NONLINEAR RESPONSE
  • ALGAAS
  • INDEX

Cite this

Garcia-Deniz, A. Z., Murzyn, P., Fox, A. M., Kundys, D. O., Wells, J-P. R., Whittaker, M., Skolnick, M. S., Krauss, T. F., & Roberts, J. S. (2006). Ultrafast reflectivity modulation in AlxGa1-xAs/InyAlxGa1-x-yAs multiple quantum well photonic crystal waveguides. Physical Review B: Condensed Matter and Materials Physics, 74(16), [165327]. https://doi.org/10.1103/PhysRevB.74.165327