Pol Sopeña

21
Documents

Publications

Publications

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Femtosecond Laser Irradiation of Ge-Rich Ge-Sb-Te in Thin Films and Multilayer Structures for Phase-Change Memory

Keerati Meeporn , Mathieu Abel , Walter Batista-Pessoa , Nicolas Bottin , Mania Majumder et al.
Applied Surface Science, 2026, 720, ⟨10.1016/j.apsusc.2025.165224⟩
Article dans une revue hal-05381048 v1
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Progress in Laser Inscription in Semiconductors by Multiphoton-Initiated Nanosecond Infrared Pulse Absorption

Pol Sopeña , Niladri Ganguly , Gabriel Spühler , Andrei Selivanau , David Grojo
Journal of Laser Micro/Nanoengineering, 2025, 20 (2), pp.119-126. ⟨10.2961/jlmn.2025.02.2005⟩
Article dans une revue hal-05271803 v1
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Customized flipped quasi-Bessel beams for infrared ultrafast laser drilling through scattering FR4 composite

P Sopeña , N Sanner
Optics and Laser Technology, 2025, 192, pp.114037. ⟨10.1016/j.optlastec.2025.114037⟩
Article dans une revue hal-05326595 v1
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Enhanced reliability and precision for internal laser processing of semiconductors using temporal domain strategies

Pol Sopeña , Andong Wang , Niladri Ganguly , Alexandros Mouskeftaras , David Grojo
Proceedings of SPIE, the International Society for Optical Engineering, 2025, Nanoscale and Quantum Materials: From Synthesis and Laser Processing to Applications 2025, 13352, pp.1335205. ⟨10.1117/12.3049658⟩
Article dans une revue hal-05029009 v1
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Evidence of counter-propagating solidification fronts in silicon upon femtosecond laser induced amorphization

Mario Garcia-Lechuga , Pol Sopeña , David Grojo , Jan Siegel
Journal of Applied Physics, 2025, 137 (15), ⟨10.1063/5.0245170⟩
Article dans une revue hal-05326589 v1
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In-chip critical plasma seeds for laser writing of reconfigurable silicon photonics systems

Andong Wang , Amlan Das , Vladimir Yu Fedorov , Pol Sopeña , Stelios Tzortzakis et al.
Nature Communications, 2025, 16 (1), pp.6733. ⟨10.1038/s41467-025-61983-9⟩
Article dans une revue hal-05326556 v1
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Axicon-lens-doublet focusing for the fabrication of ultra-high-aspect-ratio structures through silicon with infrared ultrafast lasers

Niladri Ganguly , Pol Sopeña , David Grojo
Proceedings of SPIE, the International Society for Optical Engineering, 2024, Laser + Photonics for Advanced Manufacturing, pp.130050L. ⟨10.1117/12.3017566⟩
Article dans une revue hal-04638403 v1
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Laser welding for semiconductors

David Grojo , Pol Sopeña
Laser Focus World, 2023, 59 (2), pp.25-27
Article dans une revue hal-04241569 v1
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Wavelength Influence on Precision Femtosecond Laser Processing

Mario Garcia-Lechuga , Pol Sopeña , Olivier Utéza , Nicolas Sanner , Jan Siegel et al.
Microscopy and Microanalysis, 2022, 28 (S1), pp.896-897. ⟨10.1017/S1431927622003944⟩
Article dans une revue hal-03800988 v1
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Burst mode enabled ultrafast laser inscription inside gallium arsenide

Andong Wang , Pol Sopeña , David Grojo
International Journal of Extreme Manufacturing, 2022, 4, pp.045001. ⟨10.1088/2631-7990/ac8fc3⟩
Article dans une revue hal-03800158 v1
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Ultrafast laser stabilization by nonlinear absorption for enhanced-precision material processing

Pol Sopeña , Mario Garcia-Lechuga , Andong Wang , David Grojo
Optics Letters, 2022, 47 (4), pp.993-996. ⟨10.1364/OL.449720⟩
Article dans une revue hal-03576611 v1
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Transmission Laser Welding of Similar and Dissimilar Semiconductor Materials

Pol Sopeña , Andong Wang , Alexandros Mouskeftaras , David Grojo
Laser and Photonics Reviews, 2022, pp.2200208. ⟨10.1002/lpor.202200208⟩
Article dans une revue hal-03764654 v1

Three-dimensional laser writing deep inside Gallium Arsenide

A Wang , A Das , P Sopeña , David Grojo
16th International Conference on Laser Ablation COLA 2021/2022, Apr 2022, Matsue, Japan
Communication dans un congrès hal-03800586 v1

Three-dimensional laser writing deep inside Gallium Arsenide

A Wang , A Das , P Sopeña , David Grojo
16th International Conference on Laser Ablation COLA 2021/2022, Apr 2022, Matsue, Japan
Communication dans un congrès hal-03817255 v1

Pulse energy stabilization to enhance precision of ultrafast laser material processing

P Sopeña , M Garcia-Lechuga , A Wang , David Grojo
Conference on Laser Ablation, Apr 2022, Masue, Japan
Communication dans un congrès hal-03800564 v1
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Direct nanosecond laser welding of semiconductor materials

Pol Sopeña , Andong Wang , Alexandros Mouskeftaras , David Grojo
CLEO: Applications and Technology, 2022, San Jose, United States. pp.JTh6A.4, ⟨10.1364/CLEO_AT.2022.JTh6A.4⟩
Communication dans un congrès hal-03800616 v1
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Ultrafast laser writing stabilized by nonlinear absorption

Pol Sopeña , Mario García-Lechuga , Andong Wang , David Grojo
The 23rd International Symposium on Laser Precision Microfabrication – LPM2022, 2022, Dresde, Germany
Communication dans un congrès hal-03817206 v1

Ultrafast laser writing stabilized by nonlinear absorption

Pol Sopeña , Mario García-Lechuga , Andong Wang , David Grojo
The 23rd International Symposium on Laser Precision Microfabrication – LPM2022, 2022, Dresde, Germany
Communication dans un congrès hal-03800502 v1

Pulse energy stabilization to enhance precision of ultrafast laser material processing

P Sopeña , M Garcia-Lechuga , A Wang , David Grojo
Conference on Laser Ablation, Apr 2022, Masue, Japan
Communication dans un congrès hal-03817232 v1
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Energy stability limits of precision in ultrafast laser material processing

P Sopeña , M García-Lechuga , A Wang , David Grojo
UltrafastLight 2021, 2021, Moscou, Russia
Communication dans un congrès hal-03385631 v1
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Precision and controllability of ultrafast laser processing over the spectrum

A Wang , M Garcia-Lechuga , A Das , P Sopena , Ph Delaporte et al.
Laser Precision Microfabrication (LPM 2021), 2021, Hirosaki, Aomori, Japan
Communication dans un congrès hal-03383763 v1