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Optomechanical Motion Sensors



Felipe Guzman, Oliver Gerberding, John T. Melcher, Julian Stirling, Jon R. Pratt, Gordon A. Shaw, Jacob M. Taylor


Compact optical cavities can be combined with motion sensors to yield unprecedented resolution and SI-traceability in areas such as acceleration sensing and atomic force microscopy AFM, among others. We have incorporated Fabry-Perot fiber-optic micro-cavities onto low-loss monolithic fused-silica mechanical oscillators, demonstrating exquisite sensitivities better than 200am/rtHz in displacement, and acceleration sensing levels below 100 nano- g/rtHz over a 10kHz bandwidth. Similar tests have been conducted with novel fused-silica AFM sensors, reaching resolutions of 14fN. We will present our results on novel optomechanical systems that offer both, high sensitivity and direct SI-traceability in very simple and compact devices.
Proceedings Title
Proceedings ASPE 2015 Summer Topical Meeting, Precision Interferometric Metrology
Conference Dates
July 8-10, 2015
Conference Location
Golden, CO
Conference Title
ASPE 2015 Summer Topical Meeting, Precision Interferometric Metrology


optomechanics, interferometry, precision measurements, acceleration, force
Created July 8, 2015, Updated February 19, 2017