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Direct spectroscopy of a deep two-dimensional photonic crystal microresonator

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Citation

Kramper, P., Birner, A., Agio, M., Soukoulis, C., Muller, F., Gosele, U., et al. (2001). Direct spectroscopy of a deep two-dimensional photonic crystal microresonator. Physical Review B, 64: 233102. doi:10.1103/PhysRevB.64.233102.


Cite as: http://hdl.handle.net/21.11116/0000-0002-9BCD-9
Abstract
Photonic crystals based on macroporous silicon with fundamental band gaps in the middle infrared region 3.4-5.8 mum were fabricated. Scanning probe optical microscopy and laser spectroscopy were combined to examine a deep two-dimensional photonic crystal microresonator based on a single point defect. Two sharp resonances were recorded in the band gap, in excellent agreement with the results of numerical simulations. Such a microresonator with high-quality factors and a subwavelength mode extension could be used for a range of applications including integrated optical gas sensors.