Cavity nano-optomechanics: a nanomechanical system in a high finesse optical cavity

Sebastian Stapfner; Ivan Favero; David Hunger; Philipp Paulitschke; Jakob Reichel; Khaled Karrai; Eva M. Weig

doi:10.1117/12.854066

4 June 2010 Cavity nano-optomechanics: a nanomechanical system in a high finesse optical cavity

Sebastian Stapfner, Ivan Favero, David Hunger, Philipp Paulitschke, Jakob Reichel, Khaled Karrai, Eva M. Weig

Proceedings Volume 7727, Quantum Optics; 772706 (2010) https://doi.org/10.1117/12.854066
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

The coupling of mechanical oscillators with light has seen a recent surge of interest, as recent reviews report. ^1,2 This coupling is enhanced when confining light in an optical cavity where the mechanical oscillator is integrated as backmirror or movable wall. At the nano-scale, the optomechanical coupling increases further thanks to a smaller optomechanical interaction volume and reduced mass of the mechanical oscillator. In view of realizing such cavity nanooptomechanics experiments, a scheme was proposed where a sub-wavelength sized nanomechanical oscillator is coupled to a high finesse optical microcavity. ³ Here we present such an experiment involving a single nanomechanical rod precisely positioned into the confined mode of a miniature Fabry-Pérot cavity. ⁴ We describe the employed stabilized cavity set-up and related finesse measurements. We proceed characterizing the nanorod vibration properties using ultrasonic piezo-actuation methods. Using the optical cavity as a transducer of nanomechanical motion, we monitor optically the piezo-driven nanorod vibration. On top of extending cavity quantum electrodynamics concepts to nanomechanical systems, cavity nano-optomechanics should advance into precision displacement measurements near the standard quantum limit ⁵ , investigation of mechanical systems in their quantum regime, non-linear dynamics ⁶ and sensing applications.

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Sebastian Stapfner, Ivan Favero, David Hunger, Philipp Paulitschke, Jakob Reichel, Khaled Karrai, and Eva M. Weig "Cavity nano-optomechanics: a nanomechanical system in a high finesse optical cavity", Proc. SPIE 7727, Quantum Optics, 772706 (4 June 2010); https://doi.org/10.1117/12.854066

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