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 language | English |
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Article number | 165327 |
Journal | Physical Review B: Condensed Matter and Materials Physics |
Volume | 74 |
Issue number | 16 |
DOIs | |
Publication status | Published - 15 Oct 2006 |
Keywords
- NONLINEAR RESPONSE
- ALGAAS
- INDEX