AustralieFrV1, Main, Exploration, bibRecord, 004915

Ultrafast nanoporous silica formation driven by femtosecond laser irradiation

Identifieur interne : 004915 ( Main/Exploration ); précédent : 004914; suivant : 004916

Ultrafast nanoporous silica formation driven by femtosecond laser irradiation

Auteurs : Matthieu Lancry [France] ; Bertrand Poumellec [France] ; John Canning [Australie] ; Kevin Cook [Australie] ; Jean-Claude Poulin [France] ; Francois Brisset [France]

Source :

Laser & Photonics Reviews [ 1863-8880 ] ; 2013-11.

RBID : ISTEX:450990A9F45696BE5C685614412B0F0DF9631F52

English descriptors

Abstract

A type of glass modifications occurring after femto‐second laser irradiation gives rise to strong (10−2) from birefringence. This form birefringence is thought to be related to index nanostructure (called nanogratings). Analyzing induced tracks in fused silica using scanning electron microscopy (SEM) with nm resolution shows that nanostructures are porous nanoplanes with an average index lower than typical silica (Δn ∼ –0.20). Their origin is explained as arising from fast decomposition of the glass under localized, high‐intensity femtosecond laser radiation where strong nonlinear, multiphoton‐induced photoionization leads to plasma generation. Mechanistic details include Coulombic explosions characteristic of strong photoionization and the production of self‐trapped exciton (STE). Rapid relaxation of these STE prevents recombination and dissociated atomic oxygen instead recombines with each other to form molecular oxygen pointed out using Raman microscopy. Some of it is dissolved in the condensed glass whilst the rest is trapped within nanovoids. A chemical recombination can only occur at 1200 °C for many hours. This explains the thermal stability of such a nanostructure. Precise laser translation and control of these birefringent nanoporous structures allo arbitrarily tuning and positioning within the glass, an important tool for controlling optical properties for photonic applications, catalysts, molecular sieves, composites and more.

Url:

https://api.istex.fr/document/450990A9F45696BE5C685614412B0F0DF9631F52/fulltext/pdf

DOI: 10.1002/lpor.201300043

Affiliations:

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Appl</term>
<term>Atomic density contrast</term>
<term>Atomic oxygen</term>
<term>Auger spectroscopy</term>
<term>Birefringence</term>
<term>Conduction band</term>
<term>Energy threshold</term>
<term>Experimental conditions</term>
<term>Femtosecond</term>
<term>Femtosecond irradiation</term>
<term>Femtosecond laser</term>
<term>Femtosecond laser irradiation</term>
<term>Femtosecond lasers</term>
<term>Form birefringence</term>
<term>Form nanoporous silica</term>
<term>Glass decomposition</term>
<term>Glass density</term>
<term>Gmbh</term>
<term>High level</term>
<term>High plasma temperature</term>
<term>High repetition rate regime</term>
<term>Index change</term>
<term>Interaction volume</term>
<term>Interstitial positions</term>
<term>Kazansky</term>
<term>Kgaa</term>
<term>Lancry</term>
<term>Laser</term>
<term>Laser beam</term>
<term>Laser irradiation</term>
<term>Laser parameters</term>
<term>Laser photon</term>
<term>Laser polarization</term>
<term>Laser polarization direction</term>
<term>Laser pulses</term>
<term>Lattice</term>
<term>Lett</term>
<term>Liquid silica</term>
<term>Mater</term>
<term>Microscopic scale</term>
<term>Molecular oxygen</term>
<term>Molecular sieves</term>
<term>Multicomponent photonic devices</term>
<term>Multiphoton</term>
<term>Multiphoton ionization</term>
<term>Nanogratings</term>
<term>Nanogratings figure</term>
<term>Nanometer scale</term>
<term>Nanoplanes</term>
<term>Nanoporous</term>
<term>Nanoporous silica formation</term>
<term>Nanostructures</term>
<term>Nanovoids form</term>
<term>Next question</term>
<term>Nonlinear</term>
<term>Optical data storage</term>
<term>Original paper laser photonics</term>
<term>Other hand</term>
<term>Oxygen atoms</term>
<term>Perpendicular</term>
<term>Photonics</term>
<term>Phys</term>
<term>Plasma density</term>
<term>Point defects</term>
<term>Polarization</term>
<term>Polarization direction</term>
<term>Porous nanoplanes</term>
<term>Poumellec</term>
<term>Pulse</term>
<term>Pulse duration</term>
<term>Pulse energy</term>
<term>Pure silica</term>
<term>Raman</term>
<term>Raman spectra</term>
<term>Repetition rate</term>
<term>Repetition rate regime</term>
<term>Room temperature</term>
<term>Scanning direction</term>
<term>Several pulses</term>
<term>Silica</term>
<term>Silica glass</term>
<term>Single step</term>
<term>Solid state</term>
<term>Strong form birefringence</term>
<term>Thermal dissociation</term>
<term>Time scale</term>
<term>Transparent materials</term>
<term>Upper part</term>
<term>Valence band</term>
<term>Verlag</term>
<term>Verlag gmbh</term>
<term>Weinheim</term>
<term>Weinheim laser photonics reviews</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Appl</term>
<term>Atomic density contrast</term>
<term>Atomic oxygen</term>
<term>Auger spectroscopy</term>
<term>Birefringence</term>
<term>Conduction band</term>
<term>Energy threshold</term>
<term>Experimental conditions</term>
<term>Femtosecond</term>
<term>Femtosecond irradiation</term>
<term>Femtosecond laser</term>
<term>Femtosecond laser irradiation</term>
<term>Femtosecond lasers</term>
<term>Form birefringence</term>
<term>Form nanoporous silica</term>
<term>Glass decomposition</term>
<term>Glass density</term>
<term>Gmbh</term>
<term>High level</term>
<term>High plasma temperature</term>
<term>High repetition rate regime</term>
<term>Index change</term>
<term>Interaction volume</term>
<term>Interstitial positions</term>
<term>Kazansky</term>
<term>Kgaa</term>
<term>Lancry</term>
<term>Laser</term>
<term>Laser beam</term>
<term>Laser irradiation</term>
<term>Laser parameters</term>
<term>Laser photon</term>
<term>Laser polarization</term>
<term>Laser polarization direction</term>
<term>Laser pulses</term>
<term>Lattice</term>
<term>Lett</term>
<term>Liquid silica</term>
<term>Mater</term>
<term>Microscopic scale</term>
<term>Molecular oxygen</term>
<term>Molecular sieves</term>
<term>Multicomponent photonic devices</term>
<term>Multiphoton</term>
<term>Multiphoton ionization</term>
<term>Nanogratings</term>
<term>Nanogratings figure</term>
<term>Nanometer scale</term>
<term>Nanoplanes</term>
<term>Nanoporous</term>
<term>Nanoporous silica formation</term>
<term>Nanostructures</term>
<term>Nanovoids form</term>
<term>Next question</term>
<term>Nonlinear</term>
<term>Optical data storage</term>
<term>Original paper laser photonics</term>
<term>Other hand</term>
<term>Oxygen atoms</term>
<term>Perpendicular</term>
<term>Photonics</term>
<term>Phys</term>
<term>Plasma density</term>
<term>Point defects</term>
<term>Polarization</term>
<term>Polarization direction</term>
<term>Porous nanoplanes</term>
<term>Poumellec</term>
<term>Pulse</term>
<term>Pulse duration</term>
<term>Pulse energy</term>
<term>Pure silica</term>
<term>Raman</term>
<term>Raman spectra</term>
<term>Repetition rate</term>
<term>Repetition rate regime</term>
<term>Room temperature</term>
<term>Scanning direction</term>
<term>Several pulses</term>
<term>Silica</term>
<term>Silica glass</term>
<term>Single step</term>
<term>Solid state</term>
<term>Strong form birefringence</term>
<term>Thermal dissociation</term>
<term>Time scale</term>
<term>Transparent materials</term>
<term>Upper part</term>
<term>Valence band</term>
<term>Verlag</term>
<term>Verlag gmbh</term>
<term>Weinheim</term>
<term>Weinheim laser photonics reviews</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract">A type of glass modifications occurring after femto‐second laser irradiation gives rise to strong (10−2) from birefringence. This form birefringence is thought to be related to index nanostructure (called nanogratings). Analyzing induced tracks in fused silica using scanning electron microscopy (SEM) with nm resolution shows that nanostructures are porous nanoplanes with an average index lower than typical silica (Δn ∼ –0.20). Their origin is explained as arising from fast decomposition of the glass under localized, high‐intensity femtosecond laser radiation where strong nonlinear, multiphoton‐induced photoionization leads to plasma generation. Mechanistic details include Coulombic explosions characteristic of strong photoionization and the production of self‐trapped exciton (STE). Rapid relaxation of these STE prevents recombination and dissociated atomic oxygen instead recombines with each other to form molecular oxygen pointed out using Raman microscopy. Some of it is dissolved in the condensed glass whilst the rest is trapped within nanovoids. A chemical recombination can only occur at 1200 °C for many hours. This explains the thermal stability of such a nanostructure. Precise laser translation and control of these birefringent nanoporous structures allo arbitrarily tuning and positioning within the glass, an important tool for controlling optical properties for photonic applications, catalysts, molecular sieves, composites and more.</div>
</front>
</TEI>
<affiliations><list><country><li>Australie</li>
<li>France</li>
</country>
<region><li>Nouvelle-Galles du Sud</li>
<li>Île-de-France</li>
</region>
<settlement><li>Orsay</li>
<li>Sydney</li>
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<orgName><li>Université Paris-Sud</li>
<li>Université de Sydney</li>
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<tree><country name="France"><region name="Île-de-France"><name sortKey="Lancry, Matthieu" sort="Lancry, Matthieu" uniqKey="Lancry M" first="Matthieu" last="Lancry">Matthieu Lancry</name>
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<name sortKey="Brisset, Francois" sort="Brisset, Francois" uniqKey="Brisset F" first="Francois" last="Brisset">Francois Brisset</name>
<name sortKey="Lancry, Matthieu" sort="Lancry, Matthieu" uniqKey="Lancry M" first="Matthieu" last="Lancry">Matthieu Lancry</name>
<name sortKey="Poulin, Jean Laude" sort="Poulin, Jean Laude" uniqKey="Poulin J" first="Jean-Claude" last="Poulin">Jean-Claude Poulin</name>
<name sortKey="Poumellec, Bertrand" sort="Poumellec, Bertrand" uniqKey="Poumellec B" first="Bertrand" last="Poumellec">Bertrand Poumellec</name>
</country>
<country name="Australie"><region name="Nouvelle-Galles du Sud"><name sortKey="Canning, John" sort="Canning, John" uniqKey="Canning J" first="John" last="Canning">John Canning</name>
</region>
<name sortKey="Cook, Kevin" sort="Cook, Kevin" uniqKey="Cook K" first="Kevin" last="Cook">Kevin Cook</name>
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</tree>
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Ultrafast nanoporous silica formation driven by femtosecond laser irradiation

Ultrafast nanoporous silica formation driven by femtosecond laser irradiation

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English descriptors

Abstract

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Le document en format XML

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