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arXiv · 0709.3483

Near-field imaging and frequency tuning of a high-Q photonic crystal membrane microcavity

S. Mujumdar·A. F. Koenderink·T. Suenner·B. C. Buchler·M. Kamp·A. Forchel·V. Sandoghdar
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Abstract

We discuss experimental studies of the interaction between a nanoscopic object and a photonic crystal membrane resonator of quality factor Q=55000. By controlled actuation of a glass fiber tip in the near-field of a photonic crystal, we constructed a complete spatio-spectral map of the resonator mode and its coupling with the fiber-tip. On the one hand, our findings demonstrate that scanning probes can profoundly influence the optical characteristics and the near-field images of photonic devices. On the other hand, we show that the introduction of a nanoscopic object provides a low-loss method for on-command tuning of a photonic crystal resonator frequency. Our results are in a very good agreement with the predictions of a combined numerical/analytical theory.

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S. Mujumdar, A. F. Koenderink, T. Suenner, B. C. Buchler, M. Kamp, A. Forchel, V. Sandoghdar. 2007-09-21. Near-field imaging and frequency tuning of a high-Q photonic crystal membrane microcavity. https://doi.org/10.1364/oe.15.017214

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