2008/05/12 by A Schliesser, A. Schliesser, G Anetsberger +7
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Broadband #Displacement (psychology) #Finesse #Homodyne detection #Mechanical and Optical Resonators #Photonic and Optical Devices #Polarization (electrochemistry) #Resonator #Vibration #Whispering-gallery wave #quant-ph
paper · pdf · doi:10.1088/1367-2630/10/9/095015
25 pages, 8 figures
arxiv created 2008/05/12 · openalex publication_date 2008/09/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The inherent coupling of optical and mechanical modes in high finesse optical microresonators provides a natural, highly sensitive transduction mechanism for micromechanical vibration. Using homodyne and polarization spectroscopy techniques, we achieve shot-noise limited displacement sensitivities of . In an unprecedented manner, this enables the detection and study of a variety of mechanical modes, which are identified as radial breathing, flexural and torsional modes using three-dimensional finite element modeling. Furthermore, a broadband equivalent displacement noise is measured and found to agree well with models for thermorefractive noise in silica dielectric cavities. Implications for ground-state cooling, displacement sensing and Kerr squeezing are discussed.