Prof. Dr. Hubert Krenner
University of Augsburg
Lehrstuhl für Experimentalphysik I
Prof. Dr. Dirk Bouwmeester
University of California, Santa Barbara
Department of Physics
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| Start of funding 01.07.2010 | ||
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| High frequency mechanical actuation and control of two-dimensional photonic crystal membranes based devices using surface acoustic waves | ||
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Prof. Dr. Hubert Krenner
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Prof. Dr. Dirk Bouwmeester
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In this cooperation we plan to employ the mechanical actuation induced by a surface acoustic wave (SAW) to control the optical modes of single and coupled photonic crystal nanocavities defined in thin semiconductor membranes. The main goal of this project is to combine these high-quality nanophotonic and optomechanical systems developed in the Bouwmeester group at UC Santa Barbara with the direct mechanical actuation and sensing using SAW technologies established at University of Augsburg. We plan to explore the potential of such hybrid systems with respect to their application for high speed tuning of cavity quantum electrodynamics effects and the direct mechanical actuation of optomechanical systems. |
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The two groups in Augsburg and Santa Barbara employed the mechanical actuation induced by a surface acoustic wave (SAW) to dynamically tune the optical mode of a high quality photonic crystal nanocavity defined in thin semiconductor membranes. We successfully combined the high-quality nanophotonic and optomechanical systems developed in the Bouwmeester group at UC Santa Barbara with the direct mechanical actuation and sensing using SAW technologies established at University of Augsburg. The major, widely recognized result, published in fall 2011 in Nature Photonics was the first demonstration of dynamic spectral tuning of the optical mode at frequencies in the gigahertz range. The support by BaCaTeC was crucial for the design and fabrication of the used samples and to perform experiments in California and Bavaria and was the foundation of a prestigious Emmy Noether Junior Research Group awarded by the Deutsche Forschungsgemeinschaft to Hubert Krenner. | |
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Final report: