Concept

Laser à fluorure de krypton

Publications associées (82)

An ArF excimer laser was used to fabricate Bragg gratings in fibers with Bi-SiO2 core and microstructured or F-doped claddings without fiber presensitization. Average and modulated refractive index changes of 2.7 x 10(-4) and 1.0 x 10(-4) were induced in p ...

Optical Society of America2012

Introduction of oxygen vacancies and fluorine into TiO2 nanoparticles by co-milling with PTFE

Vincent Laporte, Benjamin Bauer

Solid-state processes of introducing oxygen vacancies and transference of fluorine to n-TiO2 nanoparticles by co-milling with poly(tetrafluoroethylene) (PTFE) powder were examined by diffuse reflectance spectroscopy (DRS) of UV, visual, near- and mid-IR re ...

2012

Conductivity of SU-8 Thin Films through Atomic Force Microscopy Nano-Patterning

Nico de Rooij, Jürgen Brugger, Luis Guillermo Villanueva Torrijo, Cristina Martin Olmos, Peter Van der Wal

Processing fl exibility and good mechanical properties are the two major reasons for SU-8 extensive applicability in the micro-fabrication of devices. In order to expand its usability down to the nanoscale, conductivity of ultra-thin SU-8 layers as well as ...

Wiley-Blackwell2012

Compliant membranes improve resolution in full-wafer micro/nanostencil lithography

Jürgen Brugger, Luis Guillermo Villanueva Torrijo, Andreea Veronica Savu, Oscar Vazquez Mena, Katrin Sidler Arnet

This work reports on a considerable resolution improvement of micro/nanostencil lithography when applied on full-wafer scale by using compliant membranes to reduce gap-induced pattern blurring. Silicon nitride (SiN) membranes are mechanically decoupled fro ...

2012

Surface Microstructures on Planar Substrates and Textile Fibers Guide Neurite Outgrowth: A Scaffold Solution to Push Limits of Critical Nerve Defect Regeneration?

Thomas Lehnert, Li Yao

The treatment of critical size peripheral nerve defects represents one of the most serious problems in neurosurgery. If the gap size exceeds a certain limit, healing can't be achieved. Connection mismatching may further reduce the clinical success. The pre ...

Public Library Science2012

Photosensitivity and stress changes of Ge-free Bi-Al doped silica optical fibers under ArF excimer laser irradiation

Hans Georg Limberger, Christian Ban

The photosensitivity of germanium free Bi-Al-doped silica fibers with different bismuth concentrations was investigated using ArF excimer laser radiation at 193 nm and fiber grating formation. For the fiber with the highest bismuth concentration maximum re ...

Optical Society of America2011

Fabrication/Characterization of Fiber Gratings and Photosensitivity in Ge-Free Bi-Al-Silica Fibers - INVITED

Hans Georg Limberger, Georgios Violakis, Christian Ban

Refractive index changes up to 2.5 × 10-3 were demonstrated in H2-loaded germanium free Bi-Al-doped silica fibers using both ArF excimer and cw-Ar+-244 nm lasers. Tensile stress changes indicate clear contribution of compaction to the total index change. ...

2011

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In this work, nanosphere lithography was integrated with standard microfabrication for the wafer-scale fabrication of silicon nitride (SiN) membranes with arrays of submicrometer holes. A monolayer of polystyrene (PS) beads with a mean diameter of 428 or 5 ...

2011

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2011

Films of brookite TiO2 nanorods/nanoparticles deposited by matrix-assisted pulsed laser evaporation as NO2 gas-sensing layers

Raffaella Buonsanti, Mikaël Martino

TiO2 nanorods in the brookite phase, with av. dimensions of 3-4 nm × 20-50 nm, were synthesized by a wet-chem. aminolysis route and used as precursors for thin films that were deposited by the matrix-assisted pulsed laser evapn. (MAPLE) technique. A nanoro ...

2011

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