27 February 2017 Topological dynamics near exceptional points in an optomechanical system
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Proceedings Volume 10120, Complex Light and Optical Forces XI; 1012014 (2017) https://doi.org/10.1117/12.2250644
Event: SPIE OPTO, 2017, San Francisco, California, United States
Recently, it was predicted that the energy transfer between normal modes of open systems with a specific type of degeneracy known as an exceptional point (EP) could be achieved by topological operations, and that the outcome of these operations would be non-reciprocal.1 Here we demonstrate this topological transfer of energy between two vibrational modes of a cryogenic optomechanical device using a tunable laser. We also show the non-reciprocity of the energy transfer process. These results open up new directions in system control, as well as other dynamical processes of multimode systems that are robust against small perturbations.
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Luyao Jiang, Luyao Jiang, Haitan Xu, Haitan Xu, David Mason, David Mason, J. G. E. Harris, J. G. E. Harris, } "Topological dynamics near exceptional points in an optomechanical system", Proc. SPIE 10120, Complex Light and Optical Forces XI, 1012014 (27 February 2017); doi: 10.1117/12.2250644; https://doi.org/10.1117/12.2250644

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