Time-resolved and power-dependent pump-probe spectroscopy determines that two-photon absorption induces a strong blue-shift of coupling resonances in a photonic crystal waveguide. Carrier relaxation times are shortened by the surface recombination, showing potential for all-optical switching.
© 2004 Optical Society of America
A. D. Bristow, D. O. Kundys, J. R. Wells, A. M. Fox, D. M. Whittaker, M. S. Skolnick, A. Tahraoui, T. F. Krauss, and J. S. Roberts, "Ultrafast nonlinear tuning of photonic coupling resonance in AlGaAs photonic crystal waveguides," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper JThA3.
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