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View article: Dynamic Ultrafast Laser-Induced Structural Changes and Extreme Nanostructuring in Hard Dielectric Materials
Dynamic Ultrafast Laser-Induced Structural Changes and Extreme Nanostructuring in Hard Dielectric Materials Open
International audience
View article: Quantitative Mapping of Transient Thermodynamic States in Ultrafast Laser Nanostructuring of Quartz
Quantitative Mapping of Transient Thermodynamic States in Ultrafast Laser Nanostructuring of Quartz Open
Understanding material structural reaction to light is of utmost importance to advance processing resolution in ultrafast laser volume structuring into the nanoscale. Selective thermodynamic pathways are required to quench energy transport…
View article: Asymmetric Shaping for Ultrafast Elliptical Bessel-like Beams
Asymmetric Shaping for Ultrafast Elliptical Bessel-like Beams Open
The generation of an elliptical Bessel–Gauss beam has become a topic of interest in ultrafast laser processing of transparent materials because of its nearly non-diffractive elliptical central core. These beams can show potential in genera…
View article: Ultrafast laser-induced plasma anisotropy in pristine and surface pre-structured zinc telluride, probed by terahertz pulses
Ultrafast laser-induced plasma anisotropy in pristine and surface pre-structured zinc telluride, probed by terahertz pulses Open
We use THz probe pulses to detect and analyze the dynamics of charge transport anisotropies generated by ultrafast laser two-photon absorption in Zinc Telluride (ZnTe) semi-insulating crystal showing smooth and laser structured surfaces. T…
View article: Development of a 3D ultrafast laser written near-infrared spectro-interferometer
Development of a 3D ultrafast laser written near-infrared spectro-interferometer Open
Direct ultrafast laser photoinscription of transparent materials is a powerful technique for the development of embedded 3D photonics. This is particularly adaptable for astrophotonic devices when a number of inputs are required. The proce…
View article: Waveguide scattering antennas made by direct laser writing in bulk glass for spectrometry applications in the short-wave IR
Waveguide scattering antennas made by direct laser writing in bulk glass for spectrometry applications in the short-wave IR Open
A buried straight waveguide perturbed periodically by six antennas composed of submicronic cylinder voids is entirely fabricated using ultrafast laser photoinscription. The light scattered from each antenna is oriented vertically and is de…
View article: Multiscale Laser Written Photonic Structures in Bulk Chalcogenide Glasses for Infrared Light Transport and Extraction
Multiscale Laser Written Photonic Structures in Bulk Chalcogenide Glasses for Infrared Light Transport and Extraction Open
Direct ultrafast laser processing is nowadays considered the most flexible technique allowing to generate complex 3D optical functions in bulk glasses. The fact that the built-in optical element is embedded in the material brings several a…
View article: Laser written 3D 3T spectro-interferometer: study and optimisation of the laser-written nano-antenna
Laser written 3D 3T spectro-interferometer: study and optimisation of the laser-written nano-antenna Open
Stationary Wave Integrated Fourier Transform Spectrometers (SWIFTS) are based on the sampling of a stationary wave using nano-sampling centres on the surface of a channel waveguide. Single nanogroove sampling centres above the waveguide su…
View article: Ultrashort Bessel beam photoinscription of Bragg grating waveguides and their application as temperature sensors
Ultrashort Bessel beam photoinscription of Bragg grating waveguides and their application as temperature sensors Open
Ultrashort pulsed Bessel beams with intrinsic nondiffractive character and potential strong excitation confinement down to 100 nm can show a series of advantages over Gaussian beams in fabricating efficient Bragg grating waveguides (BGWs).…
View article: Efficient point-by-point Bragg gratings fabricated in embedded laser-written silica waveguides using ultrafast Bessel beams
Efficient point-by-point Bragg gratings fabricated in embedded laser-written silica waveguides using ultrafast Bessel beams Open
We demonstrate highly efficient Bragg gratings written point-by-point by sequential single-pulse ultrashort Bessel laser beams in laser photoinscribed single-mode waveguides in bulk fused silica. The use of chirped non-diffractive Bessel b…
View article: Embedded nanogratings in bulk fused silica under non-diffractive Bessel ultrafast laser irradiation
Embedded nanogratings in bulk fused silica under non-diffractive Bessel ultrafast laser irradiation Open
We report the formation of embedded nanogratings in bulk fused silica under quasi-stationary field patterns generated by ultrashort laser pulses in nondiffractive modes. The zero-order Bessel beam consists of almost non-propagative light p…
View article: Near infrared spectro-interferometer using femtosecond laser written GLS embedded waveguides and nano-scatterers
Near infrared spectro-interferometer using femtosecond laser written GLS embedded waveguides and nano-scatterers Open
Guided optics spectrometers can be essentially classified into two main families: based on Fourier transform or dispersion. In the first case, an interferogram generated inside an optical waveguide and containing the spectral information i…
View article: Ultrafast laser-induced refractive index changes in Ge_15As_15S_70 chalcogenide glass
Ultrafast laser-induced refractive index changes in Ge_15As_15S_70 chalcogenide glass Open
International audience