FIBER-TOP TECHNOLOGY: MINIATURIZED SENSORS ON THE TIP OF A FIBER

Fiber-top MicroElectroMechanical Systems (patents pending) [Iannuzzi et al., Appl. Phys. Lett. 88, 053501 (2006)] are a new generation of miniaturized devices obtained by carving tiny movable structures directly on the cleaved end of an optical fiber. The light coupled into the fiber from the opposite end allows measurements of the position of the micromechanical parts with sub-nanometer accuracy. The monolithic structure of the device, the absence of electronic contacts on the sensing head, and the simplicity of the working principle offer unprecedented opportunities for the development of scientific instruments for applications in and outside research laboratories, including atomic force microscopy [Iannuzzi et al., Rev. Sci. Instr. 77, 106105 (2007)], biochemical sensing [Iannuzzi et al., Sensors & Act. B121, 706 (2007)], and measurements of refractive index [Alberts et al., Meas. Sci. Technol. 20, 034005 (2009)].

Contact: Davide Iannuzzi, email: iannuzzi@few.vu.nl

Condensed Matter Physics Group

Iannuzzi1 

An artistic representation of a fiber-top cantilever