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  • 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
  • (Optica Publishing Group, 2013),
  • paper CK_10_1

High-Sensitivity Monitoring of Nanomechanical Motion using Optical Heterodyne Detection

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Due to the prospect of transferring the optical quantum control achieved with ions and atoms also to macroscopic mechanical oscillators, cavity optomechanics [1,2] has been an increasingly active research field commencing with the first demonstration of radiation pressure dynamical backaction cooling more than half a decade ago. By optimizing the optical and mechanical quality factors and operating at cryogenic temperatures, quantum-coherent coupling could be achieved [3]. Simultaneously, it has been shown that nanomechanical resonators based on photonic crystals can be advantageous, as they offer low phonon occupancies (n¯=kBT/Ω) due to the high vacuum optomechanical coupling rates and high mechanical frequencies in the GHz domain [4]. To fully exploit the potential of these systems, sensitive measurement techniques need to be developed.

© 2013 IEEE

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