期刊
OPTICS EXPRESS
卷 16, 期 20, 页码 15887-15896出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.16.015887
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资金
- Australian Research Council
- Denison Foundation
- Department of Education, Science and Technology
We demonstrate the spectral and spatial reconfigurability of photonic crystal double-heterostructure cavities in silicon by microfluidic infiltration of selected air holes. The lengths of the microfluidic cavities are changed by adjusting the region of infiltrated holes in steps of several microns. We systematically investigate the spectral signature of these cavities, showing high Q-factor resonances for a broad range of cavity lengths. The fluid can be removed by immersing the device in toluene, offering complete reconfigurability. Our cavity writing technique allows for tolerances in the infiltration process and provides flexibility as it can be employed at any time after photonic crystal fabrication. (C) 2008 Optical Society of America
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