Hernandez-Rueda, J.; Puerto García, D.; Siegel, J.; Galvan-Sosa, M.; Solis, J. (2012). Plasma dynamics and structural modifications induced by femtosecond laser pulses in quartz. Applied Surface Science. 258(23):9389-9393. https://doi.org/10.1016/j.apsusc.2011.12.020
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/138745
Título:
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Plasma dynamics and structural modifications induced by femtosecond laser pulses in quartz
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Autor:
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Hernandez-Rueda, J.
Puerto García, Daniel
Siegel, J.
Galvan-Sosa, M.
Solis, J.
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Entidad UPV:
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Universitat Politècnica de València. Instituto Universitario de Tecnología Nanofotónica - Institut Universitari de Tecnologia Nanofotònica
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Fecha difusión:
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Resumen:
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[EN] We have investigated plasma formation and relaxation dynamics induced by single femtosecond laser pulses at the surface of crystalline SiO 2 (quartz) along with the corresponding topography modifications. The use of ...[+]
[EN] We have investigated plasma formation and relaxation dynamics induced by single femtosecond laser pulses at the surface of crystalline SiO 2 (quartz) along with the corresponding topography modifications. The use of fs-resolved pump-probe microscopy allows combining spatial and temporal resolution and simultaneous access to phenomena occurring in adjacent regions excited with different local fluences. The results show the formation of a transient free-electron plasma ring surrounding the location of the inner ablation crater. Optical microscopy measurements reveal a 30% reflectivity decrease in this region, consistent with local amorphization. The accompanying weak depression of ¿15 nm in this region is explained by gentle material removal via Coulomb explosion. Finally, we discuss the timescales of the plasma dynamics and its role in the modifications produced, by comparing the results with previous studies obtained in amorphous SiO 2 (fused silica). For this purpose, we have conceived a new representation concept of time-resolved microscopy image stacks in a single graph, which allows visualizing quickly suble differences of the overall similar dynamic response of both materials. © 2011 Elsevier B.V.
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Palabras clave:
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Dynamics
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Femtosecond laser
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Fused silica
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Microscopy
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Plasma
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Pump-probe
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Quartz
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Coulomb explosion
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Fluences
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Material removal
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Optical microscopy measurements
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Plasma dynamics
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Plasma formations
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Relaxation dynamics
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Single graph
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Structural modifications
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Temporal resolution
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Time resolved microscopy
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Time-scales
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Dynamic response
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Magnetohydrodynamics
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Microscopic examination
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Optical microscopy
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Plasma diagnostics
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Plasmas
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Probes
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Surface topography
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Ultrafast lasers
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Ultrashort pulses
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Derechos de uso:
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Cerrado |
Fuente:
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Applied Surface Science. (issn:
0169-4332
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DOI:
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10.1016/j.apsusc.2011.12.020
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Editorial:
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ELSEVIER SCIENCE BV
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Versión del editor:
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https://doi.org/10.1016/j.apsusc.2011.12.020
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Código del Proyecto:
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info:eu-repo/grantAgreement/MEC//TEC2005-00074/ES/PRODUCCION DE GUIAS DE ONDA ACTIVAS EN VIDRIOS FUNCIONALES MEDIANTE ESCRITURA DIRECTA CON PULSOS LASER ULTRACORTOS CON CONTROL DINAMICO DE FASE/
info:eu-repo/grantAgreement/MICINN//TEC2008-01183/ES/PRODUCCION DE ELEMENTOS FOTONICOS EN SUPERFICIE Y VOLUMEN MEDIANTE ESCRITURA DIRECTA CON FUENTES AVANZADAS DE PULSOS ULTRACORTOS/
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Descripción:
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La versión de editor/PDF no puede utilizarse. Debe enlazar a la versión de editor con DOI. Author's post-print must be released with a Creative Commons Attribution Non-Commercial No Derivatives License
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Agradecimientos:
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This work has been partially supported by the Spanish TEC2008-01183 project. J.H.-R. acknowledges a grant under the same project. D.P. acknowledges a grant of the Spanish Ministry of Science and Education under TEC 2005-00074.[+]
This work has been partially supported by the Spanish TEC2008-01183 project. J.H.-R. acknowledges a grant under the same project. D.P. acknowledges a grant of the Spanish Ministry of Science and Education under TEC 2005-00074.
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Tipo:
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Artículo
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