Publications related to Nanostructuring and lattice dynamics of materials by femtosecond lasers

Widely Tunable Picosecond-Pulsed Source near 2 μm based on Cascaded Raman Wavelength Shifting

Camille Sophie Brès, Adrien Billat, Steevy Joyce Cordette, Yu-Pei Tseng

We demonstrate a cavity-less picosecond pulsed source near 2μm, tunable over more than 200nm based on third order cascaded Raman wavelength shifting. Up to 44% conversion is achieved for 100mW peak powers at 200MHz repetition rate. ...

2014

Biomimetic Pieris rapae’s Nanostructure and Its Use as a Simple Sucrose Sensor

Philippe Renaud, David Vincent Bonzon, Rodrigo Martinez Duarte

iomimetics often provides efficient ways to create a product incorporating novel properties. Here we present the replication of the Pieris rapae butterfly optical structure. This butterfly has white wings with black spots. The white coloration is produced ...

MDPI2014

Nanograting Orientation Influence on Stress Induced by Femtosecond Laser in Fused Silica

Yves Bellouard

Under certain conditions, femtosecond lasers can be used to introduce self-organized nanogratings in the bulk of fused silica. Here, we report that the nanogratings orientation influences the induced stress distribution around laser affected zones. ...

IEEE2013

Optically-transparent actuators and micro-mechanical systems fabricated using femtosecond lasers

Yves Bellouard, Tao Yang

Non-linear laser-matter interaction offers the possibility to structure transparent material in three dimensions. Here, we demonstrate that such process can be implemented for fabricating novel type of microsystems, including actuators transparent to visib ...

IEEE2013

Femtosecond versus picosecond laser machining of nano-gratings and micro-channels in silica glass

Yves Bellouard

The ability of 8 picosecond pulse lasers for three dimensional direct-writing in the bulk of transparent dielectrics is assessed through a comparative study with a femtosecond laser delivering 600 fs pulses. The comparison addresses two main applications: ...

Optical Society of America2013

Coupling of a high-energy excitation to superconducting quasiparticles in a cuprate from coherent charge fluctuation spectroscopy

Majed Chergui, Fabrizio Carbone, Andreas Helmut Christian Mann, Mariateresa Scarongella, Ahmad Odeh

Dynamical information on spin degrees of freedom of proteins or solids can be obtained by NMR and electron spin resonance. A technique with similar versatility for charge degrees of freedom and their ultrafast correlations could move the understanding of s ...

National Academy of Sciences2013

Characterization of optical polarization converters made by femtosecond laser writing

Yves Bellouard

Recently, new types of silica polarization converters fabricated by femtosecond lasers have been introduced. These devices use spatially arranged nanogratings found under certain femtosecond laser exposure conditions in fused silica to create arbitrary pol ...

2013

Off-resonant magnetization dynamics phase-locked to an intense phase-stable terahertz transient

Christoph Peter Hauri, Fernando Ardana Lamas

Controlling magnetization dynamics with a femtosecond laser is attracting interest both in fundamental science and in industry because of the potential to achieve magnetic switching at ever faster speeds. Here, we report a coherent, phase-locked coupling b ...

Nature Publishing Group2013

Wideband Uniform Generation of Shape-Adjustable Pulses in Two-Pump Fiber Optic Parametric Amplifier

Camille Sophie Brès, Mohammad Amin Shoaie

A tunable, stable pulse generation technique based on two-pump fiber optic parametric amplification is theoretically analyzed and experimentally demonstrated to generate uniform near-Gaussian pulses over 32 nm. It is shown that pulse shape can also be tune ...

2013

Density variation in fused silica exposed to femtosecond laser

Yves Bellouard

Fused silica (a-SiO2) exposure to low-energy femtosecond laser pulses leads to interesting effects such as a local increase of etching rate and/or a local increase of refractive index. Up to now the exact modifications occurring in the glass matrix after e ...

IEEE2012

Nanostructuring and lattice dynamics of materials by femtosecond lasers

Widely Tunable Picosecond-Pulsed Source near 2 μm based on Cascaded Raman Wavelength Shifting

Biomimetic Pieris rapae’s Nanostructure and Its Use as a Simple Sucrose Sensor

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Widely Tunable Picosecond-Pulsed Source near 2 μm based on Cascaded Raman Wavelength Shifting

Biomimetic Pieris rapae’s Nanostructure and Its Use as a Simple Sucrose Sensor

Nanograting Orientation Influence on Stress Induced by Femtosecond Laser in Fused Silica

Optically-transparent actuators and micro-mechanical systems fabricated using femtosecond lasers

Femtosecond versus picosecond laser machining of nano-gratings and micro-channels in silica glass

Coupling of a high-energy excitation to superconducting quasiparticles in a cuprate from coherent charge fluctuation spectroscopy

Characterization of optical polarization converters made by femtosecond laser writing

Off-resonant magnetization dynamics phase-locked to an intense phase-stable terahertz transient

Wideband Uniform Generation of Shape-Adjustable Pulses in Two-Pump Fiber Optic Parametric Amplifier

Density variation in fused silica exposed to femtosecond laser

Coupling of a high-energy excitation to superconducting quasiparticles in a cuprate from coherent charge fluctuation spectroscopy

Characterization of optical polarization converters made by femtosecond laser writing

Nanograting Orientation Influence on Stress Induced by Femtosecond Laser in Fused Silica

Optically-transparent actuators and micro-mechanical systems fabricated using femtosecond lasers

Off-resonant magnetization dynamics phase-locked to an intense phase-stable terahertz transient

Wideband Uniform Generation of Shape-Adjustable Pulses in Two-Pump Fiber Optic Parametric Amplifier

Femtosecond versus picosecond laser machining of nano-gratings and micro-channels in silica glass

Density variation in fused silica exposed to femtosecond laser