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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Zervas, Michalis N.
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Whispering gallery mode resonances in thermally poled borosilicate glass hetero-fiberscitations
- 2021Whispering gallery mode resonances in thermally poled borosilicate glass optical microcavities
- 2019Design and implementation of fiber-embedded plasmonic structures in microwires
- 2018All-fiber plasmonic platform based on hybrid composite metal/glass microwirescitations
- 2016Robust plasmonic tips fabricated by the tapering of composite hybrid silicate microfibers with metallic core
- 2015Novel angle-resolved interrogation method for double-clad doped fibers and high-power fiber laser components
- 2014High power ytterbium-doped fiber lasers - fundamentals and applicationscitations
- 2011Integrated Nd-doped borosilicate glass microsphere lasercitations
- 2011A compact broadband microfiber Bragg gratingcitations
- 2010Position-dependent coupling between a channel waveguide and a distorted microsphere resonatorcitations
- 2010Chalcogenide glass microsphere lasercitations
- 2009Chalcogenide glass microspheres and their applications
- 2006Control of coupling between waveguides and microsphere resonators
- 2004UV inscription of sub-micron periodic structures in "hard" optical materials and waveguides
- 2001Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachiningcitations
- 2000Relief gratings on Er/Yb-doped borosilicate glasses and waveguides by excimer laser ablationcitations
Places of action
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document
UV inscription of sub-micron periodic structures in "hard" optical materials and waveguides
Abstract
Interferometric ablation and structural modification of materials using pulsed UV lasers is a powerful technique for the straightforward fabrication of relief structures in "hard" optical materials such as glasses and thin polycrystalline films. In this approach, a high intensity periodic UV radiation pattern, generated using two- or multi-beam interference, directly ablates the exposed material or induces structural modification in the irradiated volume. In the case of volume structural modification, a further step of development by selective chemical etching may employed to reveal the periodic relief pattern. The selectivity between ablation and volume structural modification is controlled by adjusting the exposure energy density and the number of pulses according to the specific material. Selected results in direct and chemically-assisted interferometric ablation patterning of 1D relief Bragg reflectors in thin oxide films and overlaid waveguides are presented and discussed. Characteristics of the inscription process related to material damage, optical loss, stitching errors and strength irregularities and their correlation to the spectral properties of the waveguide gratings are addressed.