Christian Santschi

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Related publications (71)

Polarization sensitive silicon photodiodes using nanostructured metallic grids

Christian Santschi, Liza Carol Andrea Dunbar, Olivier Martin

In this paper, we present the design, fabrication, and characterization of wire grid polarizers. These polarizers show high extinction ratios and high transmission with structure dimensions that are compatible with current complementary metal-oxide-semicon ...

2009

Focused Ion Beam: A Versatile Technique for the Fabrication of Nano-Devices

Christian Santschi, Jürgen Brugger, Olivier Martin, Oscar Vazquez Mena

2009

Near-field optical images of subwavelength annular aperture arrays exhibiting an extraordinary transmission

Patrik Willi Hoffmann, Christian Santschi

In this paper, we present near-field optical images of nanostructures exhibiting an extraordinary transmission. These structures consist of annular aperture arrays engraved in a metallic film: they are quite promising structures for nanophotonics because o ...

2008

Two-dimensional electrostatic force field measurements with simultaneous topography measurement on embedded interdigitated nanoelectrodes using a force distance curve based method

Patrik Willi Hoffmann, Christian Santschi

Accurate simultaneous measurements on the topography and electrostatic force field of 500 nm pitch interdigitated electrodes embedded in a thin SiO2 layer in a plane perpendicular to the orientation of the electrodes are shown for the first time. A static ...

AIP American Institute of Physics2008

Integrated Nickel Micro-Nano-Hall Sensors on SU-8 Cantilevers for Scanning Hall Probe Microscopy

Radivoje Popovic, Giovanni Boero, Christian Santschi, Chantal Imboden, Jürgen Brugger, Schahrazede-Lila Mouaziz, Oscar Vazquez Mena

We report the fabrication and characterization of nickel Hall sensors integrated on SU-8 cantilevers. Sensors having active area down to 1x1 μm 2 show a magnetic field resolution better than 1μT/Hz 1/2 in the thermal noise frequency range. The fabricated d ...

IEEE2007

Cell Membranes Suspended Across Nanoaperture Arrays

Jean-Baptiste Perez, Horst Vogel, Christian Santschi, Jürgen Brugger, Christophe Danelon

The authors present a method for spreading large (> 100 mm2) cell membrane fragments across nanoapertures in planar supports. Electron-beam and focused-ion-beam lithog. were used to fabricate arrays of 50-600 nm diam. holes in free-standing silicon nitride ...

2006

Micro- and nanostructured devices for investigating biomolecular interactions

Jean-Baptiste Perez, Horst Vogel, Christian Santschi, Christoph Schreiter, Jürgen Brugger, Christophe Danelon

Cell membrane receptors and ion channels are essential in many different cellular processes. To analyse the activity of membrane proteins in vesicles and biological cells, we fabricated micro- nanostructured chips, enabling the application of electrophysio ...

2006

Fabrication and functionalization of nanochannels by electron-beam-induced silicon oxide deposition

Horst Vogel, Christian Santschi, Jürgen Brugger, Christophe Danelon

We report on the fabrication and electrical characterization of functionalized solid-state nanopores in low stress silicon nitride membranes. First, a pore of approximately 50 nm diameter was drilled using a focused ion beam technique, followed by the loca ...

2006

Interdigital 50 nm Ti Electrode Arrays Fabricated Using XeF2 Enhanced Focused Ion Beam Etching

Patrik Willi Hoffmann, Christian Santschi, Jürgen Brugger

The fabrication of interdigitated titanium nanoelectrode arrays of 50 nm in width and spacing is described in this work. The nanoarrays have been realized using a Ga+ focused ion beam (FIB). FIB milling is typically accompanied by redeposition of removed m ...

2006

Nanostencil-based lithography for silicon nanowires fabrication

Vincent Pott, Christian Santschi, Mihai Adrian Ionescu, Daniel Grogg, Jürgen Brugger

2005

Cross section investigations of compositions and sub-structures of tips obtained by focused electron beam induced deposition

Philippe Buffat, Danièle Laub, Johann Michler, Patrik Willi Hoffmann, Ivo Utke, Christian Santschi, Marco Cantoni

The spatial evolution of compositions and sub-structures inside focused-electron-beam-deposited tips from dicobalt-octacarbonyl Co2(CO)8 precursor at 25 keV and varying beam current (20 pA - 3 A) is extensively studied for the first time by means of energy ...

2005

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