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Samuel Rosset

Cette personne n’est plus à l’EPFL

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Publications associées (61)

Electroactive polymer based reconfigurable phase shifter at millimeter-waves

Julien Perruisseau-Carrier, Samuel Rosset, Herbert Shea, Pietro Romano, Oluwaseun Adelowo Araromi

2014

Electromagnetic characterisation of flexible conductive membranes at millimetre-waves

Julien Perruisseau-Carrier, Samuel Rosset, Luc Maffli, Herbert Shea, Pietro Romano

Presented is the experimental surface impedance characterisation of stretchable conductors at Ka-band, using a non-contact technique based on two-port rectangular waveguide measurements. Two different types of metallisations are analysed, namely gold ion i ...

Institution of Engineering and Technology2013

An electroactive polymer energy harvester for wireless sensor networks

Samuel Rosset, Herbert Shea

This paper reports the design, fabrication, and testing of a soft electroactive polymer power generator that has a volume of 1cm(3). The generator provides an opportunity to harvest energy from environmental sources to power wireless sensor networks becaus ...

Iop Publishing Ltd2013

Zipping dielectric elastomer actuators: characterization, design and modeling

Samuel Rosset, Luc Maffli, Herbert Shea

We report on miniature dielectric elastomer actuators (DEAs) operating in zipping mode with an analytical model that predicts their behavior. Electrostatic zipping is a well-known mechanism in silicon MEMS to obtain large deformations and forces at lower v ...

Iop Publishing Ltd2013

Surface impedance measurements of thin flexible metallization at millimeter-waves

Julien Perruisseau-Carrier, Samuel Rosset, Luc Maffli, Herbert Shea, Pietro Romano

2013

Improved electromechanical behavior in castable dielectric elastomer actuators

Samuel Rosset, Herbert Shea, Samin Akbari

Non-viscoelastic castable elastomers are replacing the polyacrylate VHB films in the new generations of dielectric elastomer actuators (DEAs) to achieve fast and reliable actuation. We introduce the optimum prestretch conditions to enhance the electromecha ...

American Institute of Physics2013

Flexible and stretchable electrodes for dielectric elastomer actuators

Samuel Rosset, Herbert Shea

Dielectric elastomer actuators (DEAs) are flexible lightweight actuators that can generate strains of over 100 %. They are used in applications ranging from haptic feedback (mm-sized devices), to cm-scale soft robots, to meter-long blimps. DEAs consist of ...

Springer2013

Self-sensing dielectric elastomer actuators in closed-loop operation

Samuel Rosset, Herbert Shea

Because of their large output strain, dielectric elastomer actuators (DEAs) have been proposed for tunable optics applications such as tunable gratings. However, the inherent viscoelastic drift of these actuators is an important drawback and closed-loop op ...

Iop Publishing Ltd2013

Array of lenses with individually tunable focal-length based on transparent ion-implanted EAPs

Samuel Rosset, Muhamed Niklaus, Herbert Shea

We report on the fabrication and characterization of 2x2 arrays of mm-diameter PDMS lenses whose focal length can be electrically tuned. Dielectric elastomer actuators generally rely on carbon powder or carbon grease electrodes, which are not transparent, ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

3-dimensional electrode patterning within a microfluidic channel using metal ion implantation

Samuel Rosset, Muhamed Niklaus, Herbert Shea, Demetri Psaltis, Jae-Woo Choi, James Adleman

The application of electrical fields within a microfluidic channel enables many forms of manipulation necessary for lab-on-a-chip devices. Patterning electrodes inside the microfluidic channel generally requires multi-step optical lithography. Here, we uti ...

Royal Society of Chemistry2010

Large-Stroke Dielectric Elastomer Actuators With Ion- Implanted Electrodes

Samuel Rosset, Muhamed Niklaus, Herbert Shea

In this paper, we present miniaturized polydimethyl- siloxane (PDMS)-based diaphragm dielectric elastomer actuators capable of out-of-plane displacement up to 25% of their diameter. This very large percentage displacement is made possible by the use of com ...

Institute of Electrical and Electronics Engineers2009

Metal Ion Implanted Compliant Electrodes in Dielectric Electroactive Polymer (EAP) Membranes

Samuel Rosset, Muhamed Niklaus, Herbert Shea

One of the key factors to obtain large displacements and high efficiency with dielectric electroactive polymer (DEAPs) actuators is to have compliant electrodes. Attempts to scale DEAPs down to the mm or micrometer range have encountered major difficulties ...

Trans Tech Publications Ltd2009

Ion-implanted compliant electrodes used in dielectric electroactive polymer actuators with large displacement

Samuel Rosset, Muhamed Niklaus, Herbert Shea

Metal ion implantation is shown here as an effective technique to fabricate highly compliant electrodes at room temperature on polymer substrates. By implanting 5 keV gold ions in polydimethylsiloxane we have fabricated micron-scale electrodes that conduct ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2009

Metal Ion Implantation for the Fabrication of Stretchable Electrodes on Elastomers

Samuel Rosset, Muhamed Niklaus, Herbert Shea

We report on low-energy metal ion implantation by filtered cathodic vacuum arc to create highly deformable electrodes on polydimethylsiloxane (PDMS) membranes. Implantation leads to the creation of nanometer-size clusters in the first 50 nm below the surfa ...

Wiley-Blackwell2009

Metal ion implanted electrodes for dielectric elastomer actuators

Samuel Rosset

This thesis reports on the successful use of low-energy metal ion implantation to fabricate compliant electrodes for miniaturized dielectric elastomer actuators (DEAs, also known as artificial muscles). DEAs are elastomeric actuators capable of large defor ...

EPFL2008

Voltage control of the resonance frequency of dielectric electroactive polymer (DEAP) membranes

Samuel Rosset, Muhamed Niklaus, Herbert Shea

We report on the characterization, active tuning and modeling of the first mode resonance frequency of dielectric electroactive polymer (DEAP) membranes. Unlike other resonance frequency tuning techniques, the tuning procedure presented here requires no ex ...

Institute of Electrical and Electronics Engineers2008

Microstructure of 5 keV gold-implanted polydimethylsiloxane

Samuel Rosset, Muhamed Niklaus, Herbert Shea

The first high-resolution transmission electron microscopy (TEM) cross-section images of flexible electrodes fabricated by gold ion implantation at 5 keV into polydimethylsiloxane (PDMS) are presented. A TEM sample preparation method based on cryoultramicr ...

Elsevier2008

Ion-implanted compliant and patternable electrodes for miniaturized dielectric elastomer actuators

Samuel Rosset, Muhamed Niklaus, Herbert Shea

This article presents metal ion implantation as an alternative technique to fabricate compliant electrodes for small-size dielectric elastomer actuators. When reducing the size of these actuators to below 1 cm, the ability to pattern the electrodes is adde ...

2008

Modification of Conductivity and of Mechanical Properties of Electroactive Polymer (EAP) Thin Films by Titanium Ion Implantation

Samuel Rosset, Muhamed Niklaus, Herbert Shea

We present a study of the influence on Young s modulus, stress and electrical conductivity of poly-dimethylsiloxane membranes implanted with titanium ions at energies from 5 to 35 keV, with doses up to 8x10^16 ions/cm2. The motivation for this study was to ...

Materials Research Society2008

Mechanical characterization of a dielectric elastomer microactuator with ion-implanted electrodes

Samuel Rosset, Muhamed Niklaus, Herbert Shea

We report on the mechanical characterization and modeling of a non-prestretched dielectric elastomer diaphragm microactuator with ion-implanted electrodes under the influence of a distributed load (pressure). Thin polydimethysiloxane (PDMS) membranes (30 u ...

2008

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