Yves Bellouard

Publications associées (160)

Deep-UV fluorescence lifetime imaging microscopy

Yves Bellouard

A novel fluorescence lifetime imaging microscopy (FLIM) working with deep UV 240-280 nm wavelength excitations has been developed. UV-FLIM is used for measurement of defect-related fluorescence and its changes upon annealing from femtosecond laser-induced ...

Optical Soc Amer2015

Miniaturized Reaction Chamber for Optimized Laser-Assisted Carbon Nanotube Growth

Yves Bellouard

The localized growth of carbon nanotube structures has potential in many applications such as interconnects, field emitters and sensors. Using a laser to locally heat the substrate offers a highly versatile process compatible with a broad range of substrat ...

2014

Laser-assisted growth of carbon nanotubes on laser-patterned substrates and inside sealed micro-channels

Yves Bellouard

Carbon nanotube assemblies can be used for specific applications such as sensors and filters. We present a method and proof-of-concept to directly grow vertically-aligned carbon nanotube structures within sealed enclosures by means of a feedback-controlled ...

SPIE-INT SOC OPTICAL ENGINEERING2014

Flexures are components of micro-mechanisms efficiently replacing classical multi-part joints found at the macroscale. So far, flexures have been limited to two-dimensional planar designs due to the lack of a suitable three-dimensional micromanufacturing p ...

MDPI2014

Design and Fabrication of a Prototype Actuator for Fourier Transform Interferometry

Yves Bellouard

The design, fabrication and characterisation of an uniaxial scanning mirror component for interferometry applications is presented. The device is fabricated in fused silica by means of femtosecond laser irradiation and a selective etching step. The fabrica ...

2014

Kinetics of laser-assisted carbon nanotube growth

Yves Bellouard

Laser-assisted chemical vapour deposition (CVD) growth is an attractive mask-less process for growing locally aligned carbon nanotubes (CNTs) in selected places on temperature sensitive substrates. The nature of the localized process results in fast carbon ...

2014

Direct-write diffracting tubular optical components using femtosecond lasers

Yves Bellouard

Over the last decade, femtosecond lasers have been used extensively for the fabrication of optical elements via direct writing and in combination with chemical etching. These processes have been an enabling technology for manufacturing a variety of devices ...

SPIE-INT SOC OPTICAL ENGINEERING2014

Molding topologically-complex 3D polymer microstructures from femtosecond laser machined glass

Yves Bellouard

The fabrication of complex, three-dimensional microscale shapes that can be replicated over large surfaces is an ongoing challenge, albeit one with a wide range of possible applications such as engineered surfaces with tuned wetting properties, scaffolds f ...

Optical Society of America2013

Stress distribution around femtosecond laser affected zones: effect of nanogratings orientation

Yves Bellouard

Under certain exposure conditions, femtosecond lasers create nanogratings in the bulk of fused silica for which the orientation is governed by the laser polarization. Such nanostructure induces stress that affects optical and chemical properties of the mat ...

Optical Society of America2013

In-situ localized carbon nanotube growth inside partially sealed enclosures

Yves Bellouard

American Institute of Physics2013