Abstract
We demonstrate postprocessed and reconfigurable photonic crystal double-heterostructure cavities via selective fluid infiltration. We experimentally investigate the microfluidic cavities via evanescent probing from a tapered fiber at telecommunication wavelengths. Fabry-Ṕrot fringes associated with modes of the induced cavity are in good agreement with the theory. We also demonstrate a cavity with quality factor Q=4300. Our defect-writing technique does not require nanometer-scale alterations in lattice geometry and may be undertaken at any time after photonic crystal waveguide fabrication.
| Original language | English |
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| Article number | 121103 |
| Journal | Applied Physics Letters |
| Volume | 91 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2007 |