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      https://www.ias.ac.in/article/fulltext/boms/046/0092

    • Keywords

       

      Silicon microstructures; fibre-based femtosecond laser pulses; laser ablation.

    • Abstract

       

      Various micron and submicron structures were laser-induced on silicon, including LIPSS (laser-induced periodic surface structures), grooves, conical spikes and deep craters. We used a fibre-based femtosecond (fs) laser toablate the silicon wafer in ambient air. The formed structures strongly depend on the per-pulse laser fluence and the number of delivered pulses. We characterized the obtained structures using electron scanning microscopy and atomic force microscopy. Our results revealed interesting features such as flipping structure orientation and the coexistence of two or more types of structures that exhibit a unique wetting behaviour (contact angle with water). We found that the type of surface structures significantly influences the surface wettability.

    • Author Affiliations

       

      LUIS HUMBERTO ROBLEDO-TABOADA1 JAVIER FRANCISCO JIMÉNEZ-JARQUÍN1 MARIELA FLORES-CASTAÑEDA2 3 ANTONIO MÉNDEZ-BLAS4 JACOB BARRANCO-CISNEROS5 SANTIAGO CAMACHO-LÓPEZ2

      1. Oaxaca Intitute of Technology/Mexico National Institute of Technology, C.P. 68030 Oaxaca, Mexico
      2. Optics Department, Center for Scientific Research and Higher Education of Ensenada, C.P. 22860 Ensenada, Mexico
      3. Researchers for Mexico CONACyT, Center for Scientific Research and Higher Education of Ensenada, C.P. 22860 Ensenada, Mexico
      4. Physics Institute, Benemerita Autonomous University of Puebla, C.P. 72570 Puebla, Mexico
      5. Institute of Optical Communications Research, Autonomous University of San Luis Potosi, C.P. 78210 San Luis Potosí, Mexico
    • Dates

       
  • Bulletin of Materials Science | News

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