Coupling of Light and Mechanics in a Photonic Crystal Waveguide

• URL: http://arxiv.org/abs/2007.12900v1
• Date: Sat, 25 Jul 2020 10:06:57 GMT
• Title: Coupling of Light and Mechanics in a Photonic Crystal Waveguide
• Authors: J.-B. B\'eguin (1), Z. Qin (1 and 2), X. Luan (1), H. J. Kimble (1) ((1) Norman Bridge Laboratory of Physics MC12-33, California Institute of Technology, Pasadena, CA 91125, USA, (2) State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China)
• Abstract summary: Thermally driven transverse vibration of a photonic crystal waveguide (PCW) is observed. Long term goals are to achieve strong atom-mediated links between individual phonons of vibration and single photons propagating in the guided mode of the PCW.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Observations of thermally driven transverse vibration of a photonic crystal waveguide (PCW) are reported. The PCW consists of two parallel nanobeams with a 240 nm vacuum gap between the beams. Models are developed and validated for the transduction of beam motion to phase and amplitude modulation of a weak optical probe propagating in a guided mode (GM) of the PCW for probe frequencies far from and near to the dielectric band edge. Since our PCW has been designed for near-field atom trapping, this research provides a foundation for evaluating possible deleterious effects of thermal motion on optical atomic traps near the surfaces of PCWs. Longer term goals are to achieve strong atom-mediated links between individual phonons of vibration and single photons propagating in the GMs of the PCW, thereby enabling opto-mechanics at the quantum level with atoms, photons, and phonons. The experiments and models reported here provide a basis for assessing such goals, including sensing mechanical motion at the Standard Quantum Limit (SQL).

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