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Ashwin Lal

Cette personne a quitté l’EPFL

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Publications associées (5)

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Fabrication of metallic nanoparticles by electrochemical discharges

Hannes Bleuler, Ashwin Lal

A method for the fabrication of metallic nanoparticles in large quantities by electrochemical discharges is presented. In an aqueous electrolyte, large current density (similar to 1 A/mm(2) at similar to 20 V) leads to the formation of a 'gas film' around ...

Elsevier2008

Synthesis of metal nanoparticles by electrolytical STM and electrochemical discharges

Ashwin Lal

As conventional fabrication techniques reach their limits novel techniques are needed for fabrication of structures in the nanometer range. This thesis investigates new methods to create metal nanostructures or nanoparticles with an STM tip or a sharp meta ...

EPFL2007

Position Feedback for Microrobots based on Scanning Probe Microscopy

Hannes Bleuler, Jean-Marc Breguet, Ashwin Lal

A cluster of small cooperative robots capable of executing measurement and manipulation tasks is being developed within the scope of a European project. The robots are autonomous and have an overall dimension in the order of 1 cm/sup 3/. In this paper we p ...

2004

Spark Assisted Chemical Engraving – A technology for rapid prototyping micro-fluidic devices

Hannes Bleuler, Rolf Wüthrich, Ulrich Spälter, Ashwin Lal

2005

Physical principles and miniaturization of Spark Assisted Chemical Engraving (SACE)

Hannes Bleuler, Rolf Wüthrich, Ashwin Lal, Kenichi Fujisaki

Spark assisted chemical engraving (SACE) is an unconventional micromachining technology based on electrochemical discharge phenomena for glass and various ceramics. The limits of SACE with respect to small dimensions in the particular case of glass are exp ...

2005