Optomechanical Motion Sensors

Published

July 8, 2015

Author(s)

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

Abstract

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

Pub Type

Conferences

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Keywords

optomechanics, interferometry, precision measurements, acceleration, force

Citation

Guzman, F. , Gerberding, O. , Melcher, J. , Stirling, J. , Pratt, J. , Shaw, G. and Taylor, J. (2015), Optomechanical Motion Sensors, Proceedings ASPE 2015 Summer Topical Meeting, Precision Interferometric Metrology, Golden, CO, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918898 (Accessed October 10, 2025)