Near-field optical investigations of photonic crystal microresonators

Buchler, B.C.; Kramper, P.; Kafesaki, M.; Soukoulis, C.M.; Sandoghdar, Vahid

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Near-field optical investigations of photonic crystal microresonators

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Buchler, B., Kramper, P., Kafesaki, M., Soukoulis, C., & Sandoghdar, V. (2004). Near-field optical investigations of photonic crystal microresonators. IEICE Transactions on Electronics, E87C, 371-377.

Cite as: https://hdl.handle.net/21.11116/0000-0002-9B95-7

Abstract

We present an overview of our work on the application of scanning near-field optical microscopy (SNOM) to photonic crystal structures. Our results show that SNOM can be used to map the subwavelength confinement of light to a point-defect in a 2D photonic crystal microresonator. Comparison with numerical modelling shows that SNOM is able to resolve patterns in the intensity distribution that are due to the slight non-uniformity in the crystal structure. We also discuss the future possibilities for applications of different modes of SNOM to photonic crystal devices.