Concept

Lithographie à faisceau d'électrons

Publications associées (446)

Fabrication of Free-Standing Plasmonic Nanoantennas with Application for Optical Break Junctions

Olivier Martin, Christian Santschi, Banafsheh Abasahl

We report the fabrication of plasmonic nanoantennas with dimensions in the 200 - 300 nm range, suspended across a nano-undercut, which will be used for the investigation of the optical properties of break junctions. Nanochannels, fabricated using e-beam li ...

Ieee2012

Electron beam apparatus

Jean Berney

A method suitable for preparing a specimen for inspection, the method comprising the steps of: irradiating a photocathode so that the photocathode emits electrons from a surface of the photocathode, wherein the emitted electrons each follow a trajectory, a ...

2012

Optical characterization of subwavelength-scale solid immersion lenses

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We present the fabrication and optical characterization of nano-scale solid immersion lenses (nano-SILs) with sizes down to a subwavelength range. Submicron-scale cylinders fabricated by electron-beam lithography (EBL) are thermally reflowed to form a sphe ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

High-Resolution Resistless Nanopatterning on Polymer and Flexible Substrates for Plasmonic Biosensing Using Stencil Masks

Jürgen Brugger, Luis Guillermo Villanueva Torrijo, Andreea Veronica Savu, Oscar Vazquez Mena, Mahmut Tosun

The development of nanoscale lithographic methods on polymer materials is a key requirement to improve the spatial resolution and performance of flexible devices. Here, we report the fabrication of metallic nanostructures down to 20 and 50 nm in size on po ...

American Chemical Society2012

Deep-ultraviolet picosecond flat-top pulses by chirp-matched sum frequency generation

Christoph Peter Hauri

Picosecond, flat-top, deep-UV pulses are needed to generate high-brightness electron beams to efficiently drive x-ray free electron lasers. Current metal photocathodes have low efficiency and therefore require high-energy pulses, and the generation of high ...

2012

Design and implementation of a flexible beamline for fs electron diffraction experiments

Fabrizio Carbone, Giulia Fulvia Mancini, Saverio Pagano

Ultrafast Electron Diffraction (UED) has been widely used to investigate the structural dynamics of molecules and materials. Femtosecond (fs) electron bunches are used to obtain diffraction images of a specimen upon photo-excitation by a temporally delayed ...

Elsevier2012

Comparison of extra electrons in colloidal n-type Al3+-doped and photochemically reduced ZnO nanocrystals

Raffaella Buonsanti

The "extra" electrons in colloidal n-type ZnO nanocrystals formed by aliovalent doping and photochem. redn. are compared. Whereas the two are similar spectroscopically, they show very different electron-transfer reactivities, attributable to their differen ...

2012

Understanding the core density profile in TCV H-mode plasmas

Olivier Sauter, Henri Weisen, Emiliano Fable, Dávid Wágner, Andreas Pitzschke

Results from a database analysis of H-mode electron density profiles on the Tokamak à Configuration Variable (TCV) under stationary conditions show that the logarithmic electron density gradient increases with collisionality. By contrast, usual observation ...

IOP2012

Generation of highly confined optical bottle beams by exploiting the photonic nanojet effect

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We report on the generation of photonic nanojets, which resemble optical bottle beams. They are realized by manipulating the illumination of dielectric microspheres. As illumination we use the outer region of deliberately truncated Bessel-Gauss beam or a f ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Pattern transfer and post processing of complex nanostructures formed by e-beam exposure in PMMA

Nico de Rooij, Sebastian Gautsch

We present results on various post processing techniques to create complex 3-dimensional nanostructures with enhanced capabilities. The starting point for all architectures is a self aligned nanopillar with surrounding circular rim in PMMA. This particular ...

Elsevier2011

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