2005
Real-Space observation of ultraslow light in photonic crystal waveguides
Publication
Publication
Phys. Rev. Lett. , Volume 94 - Issue Article number: 73903 p. 1- 4
We show the real-space observation of fast and slow pulses propagating inside a photonic crystal waveguide by time-resolved near-field scanning optical microscopy. Local phase and group velocities of modes are measured. For a specific optical frequency we observe a localized pattern associated with a flat band in the dispersion diagram. During at least 3 ps, movement of this field is hardly discernible: its group velocity would be at most c /1000. The huge trapping times without the use of a cavity reveal new perspectives for dispersion and time control within photonic crystals.
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| doi.org/10.1103/physrevlett.94.073903 | |
| Phys. Rev. Lett. | |
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Gersen, H., Karle, T. J., Engelen, R. J. P., Bogaerts, W., Korterik, J. P., van Hulst, N. F., … Kuipers, K. (2005). Real-Space observation of ultraslow light in photonic crystal waveguides. Phys.Rev.Lett., 94(Article number: 73903), 1–4. doi:10.1103/physrevlett.94.073903 |
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