Interactions with a photonic crystal micro-cavity using an AFM in contact or tapping mode operation
نویسندگان
چکیده
In this paper we show how the evanescent field of a localized mode in a photonic crystal micro-cavity can be perturbed by a nano-sized AFM tip. Due to the high field intensities in the cavity, we can see a significant change in output power when the tip is brought into the evanescent field in either contact or tapping mode operation. We find a 4 dB modulation, when using a Si3N4 tip and we show that the transmittance can be tuned from 0.32 to 0.8 by varying the average tapping height.
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