57 citations · 229 across the 15 of their papers we have counts for
16 papers
Femtosecond laser direct-write photoconductive patterns on tellurite glass
Gözden Torun, Anastasia Romashkina, Tetsuo Kishi +1
We report the formation of arbitrary photoconductive patterns made of tellurium (Te) nanocrystals by exposing a tellurite (TeO2-based) glass to femtosecond laser pulses. During thi…
Femtosecond laser-shockwave induced densification in fused silica
Arunkrishnan Radhakrishnan, Julien Gateau, Pieter Vlugter +1
Tightly focused femtosecond laser-beam in the non-ablative regime can induce a shock-wave enough to reach locally pressures in the giga-Pascal range or more. In a single beam confi…
On the abnormal temperature dependent elastic properties of fused silica irradiated by ultrafast lasers
Pieter Vlugter, Yves Bellouard
Materials with thermal-invariant elastic properties of materials are of interest for resonant device frequency and dimensional stability of precision devices. Here, we demonstrate…
On the uniaxial static stress relaxation in fused silica at room temperature
Saood Ibni Nazir, Christos E. Athanasiou, Yves Bellouard
The question of whether static stress in fused silica relaxes at room temperature is still under debate. Here, we report experimental data investigating stress relaxation dynamics…
Ultrafast laser interaction with transparent multi-layer SiO2/Si3N4 films
R. Ricca, V. Boureau, Y. Bellouard
We investigate the use of ultrafast lasers exposure to induce localized crystallization and elemental redistribution in amorphous dielectric multi-layers, composed of alternating S…
Few pulses femtosecond laser exposure for high efficiency 3D glass micromachining
Enrico Casamenti, Sacha Pollonghini, Yves Bellouard
Advanced three-dimensional manufacturing techniques are triggering new paradigms in the way we design and produce sophisticated parts on demand. Yet, to fully unravel its potential…
Direct-write laser-induced self-organization and metallization beyond the focal volume in tellurite glass
Gözden Torun, Tetsuo Kishi, Yves Bellouard
We report on a self-organized process initiated on a potassium-tungsten-tellurite glass surface under repetitive femtosecond laser irradiation in a regime where cumulative effects…
Wavelength-multiplexed single-shot ptychography
Jonathan Barolak, David Goldberger, Jeff Squier +3
Diagnostics capable of interrogating dynamics in harsh environments such as plasma have remained essentially unchanged in recent decades. Developments in advanced microscopy techni…
Optomechanical suspended waveguide for broadband phase modulation with frequency memory effect
Enrico Casamenti, Tao Yang, Pieter Vlugter +1
Whether it is for transmitting information or for controlling intensity, light modulation is among the essential functions commonly used in complex optical systems. In integrated o…
Silicon formation in bulk silica through femtosecond laser engraving
Charles M. Pépin, Erica Block, Richard Gaal +4
Non-linear absorption phenomena induced by controlled irradiation with a femtosecond laser beam can be used to tailor materials properties within the bulk of substrates. One of the…
Unravelling brittle fracture statistics out of self-healing patterns forming during femtosecond laser exposure
Christos-Edward Athanasiou, Max-Olivier Hongler, Yves Bellouard
Femtosecond laser written patterns at the surface of brittle materials may show a regenerative random transition from self-organized to disordered structures. Here, we show that th…
Femtosecond laser direct-write waveplates based on stress-induced birefringence
Ben McMillen, Christos Athanasiou, Yves Bellouard
The use of femtosecond lasers to introduce controlled stress states has recently been demonstrated in silica glass. We use this technique, in combination with chemical etching, to…
Formation of in-volume nanogratings with sub-100 nm periods in glass by femtosecond laser irradiation
Yang Liao, Wangjun Pan, Yun Cui +4
We present direct experimental observation of the morphological evolution during the formation of nanogratings with sub-100-nm periods with the increasing number of pulses. Theoret…
Plasma waves excited at interface by femtosecond laser irradiation enabling formation of volume nanograting in glass
Yang Liao, Jielei Ni, Lingling Qiao +4
Irradiation of intense ultrafast laser pulses in glasses can lead to formation of nanogratings whose periods are significantly smaller than the incident irradiation wavelength. The…
On the anisotropy of stress-distribution induced in glasses and crystals by non-ablative femtosecond laser exposure
Ben McMillen, Yves Bellouard
Femtosecond laser exposure in the non-ablative regime induces a variety of bulk structural modifications, in which anisotropy may depend on the polarization of the writing beam. In…
Kinetics of Laser-Assisted Carbon Nanotube Growth
Yoeri van de Burgt, Yves Bellouard, Rajesh Mandamparambil
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 sens…