Nanomechanical displacement detection using fiber-optic interferometry

Journal Article · Mon Aug 27 00:00:00 EDT 2007 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2776981· OSTI ID:21016121

Azak, N O; Shagam, M Y; Karabacak, D M; Ekinci, K L; Kim, D H; Jang, D Y ^[1]

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1. College of Engineering, Boston University, Boston, Massachusetts 02215 (United States)

We describe a fiber-optic interferometer to detect the motion of nanomechanical resonators. In this system, the primary technical challenge of aligning the fiber-optic probe to nanometer-scale resonators is overcome by simply monitoring the scattered light from the devices. The system includes no free-space optical components, and is thus simple, stable, and compact with an estimated displacement sensitivity of {approx}0.3 pm/{radical}(Hz) at optical power levels of {approx}0.75 mW.

• OSTI ID: 21016121
• Journal Information: Applied Physics Letters, Vol. 91, Issue 9; Other Information: DOI: 10.1063/1.2776981; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
FIBERS
INTERFEROMETERS
INTERFEROMETRY
LIGHT SCATTERING
NANOSTRUCTURES
RESONATORS
SENSORS
VISIBLE RADIATION