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Electrical characterization of sputter-deposited ZnO coatings on optical fibers
Related publications (59)
Distributed Acoustic Impedance Measurement Based On Forward Stimulated Brillouin Scattering
Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Zhisheng Yang, Desmond Chow Ming Chia
A technique to measure the local spectrum of forward stimulated Brillouin scattering (FSBS) along a standard optical fiber is proposed. The local acoustic impedance of surrounding material is retrieved from the measured FSBS resonance linewidth. ...
Optical Society of America2018Local activation of surface and hybrid acoustic waves in optical microwires
Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Desmond Chow Ming Chia
Elastic vibrations in subwavelength structures have gained importance recently in fundamental light–matter studies and various optoacoustic applications. Existing techniques have revealed the presence of distinct acoustic resonances inside silica microwire ...
2018Determination of elastic and piezoelectric properties of Al0.84Sc0.16N thin films
Paul Muralt, Mohammad Fazel Parsapour Kolour, Vladimir Pashchenko
In this work, bar- and disk-shaped resonators were fabricated using Al(0.8)4Sc(0.16)N thin film Sensitivity analysis of the resonators' resonance frequencies with respect to the piezoelectric material parameters revealed that resonance analysis can be used ...
IEEE2018Port: A Piezoelectric Optical Resonance Tuner
Tobias Kippenberg, Michail Zervas
This abstract presents an aluminum nitride (AlN) piezoelectric actuator for tuning optical resonance modes of silicon nitride photonic resonators. The AlN actuator is fabricated on top of a thick silicon dioxide cladding that encapsulates the nitride reson ...
IEEE2018Characterization of a Piezoelectric AlN Beam Array in Air and Fluid for an Artificial Basilar Membrane
In this study, we present a piezoelectric artificial basilar membrane (ABM) composed of a 10-channel aluminum nitride beam array. Each beam varies in length from 1306 to 3194 mu m for mimicking the frequency selectivity of the cochlea. To characterize the ...
KOREAN INST METALS MATERIALS2018Speed and Stability Limits for High-Speed Bearingless Disc Drives
Yves Perriard, Douglas Martins Araujo
Increasing material costs and emerging applications have steered research trends towards compacter and therefore faster drives. The arising challenges of miniaturization have made contactless magnetic levitation increasingly attractive, which offer practic ...
IEEE2018Microstructure Engineering in Multi-material Fibers
The integration of conducting and semiconducting architectures within thermally drawn thin and flexible fibers is emerging as a versatile platform for smart sensors and imaging systems, medical and biological probes, energy harvesting and advanced textile. ...
EPFL2017Multimode fiber optical imaging using wavefront control
Optical microscopy enables us to observe at high resolution and with a large field of view objects otherwise invisible for the naked eye. This is why it is becoming a fundamental tool in biology and in diagnostics, where observation at cellular level can t ...
EPFL2017Microscopy and digital light shaping through optical fibers
Microscopy is an essential tool in medicine and biomedical research. Traditional microscopes rely on bulky optics, complicating their usage when studying live animal tissues. In addition, light cannot penetrate very far in most biological tissues due to sc ...
EPFL2017Tuning the resonance frequencies and mode shapes in a large range multi-degree of freedom micromirror
The ability to actively shift the primary resonance of a 2D scanning micromirror allows the user to set the scanning direction, set the scanning frequency, and lift otherwise degenerate modes in a symmetrically designed system. In most cases, resonant scan ...
Optical Soc Amer2017