Ankündigung Vortrag: Laser-induced periodic surface structures

Jörn Bonse

Bundesanstalt für Materialforschung und -prüfung (BAM)

Unter den Eichen 87, D-12205 Berlin, Germany

 

 

This presentation reviews the current state in the field of Laser-induced Periodic Surface Structures (LIPSS). These surface nanostructures are a universal phenomenon and can be generated on almost any material by irradiation with intense linearly polarized laser radiation [1]. LIPSS are formed in a “self-ordered” way and are often accompanying material processing applications. They can be produced following a single-step process and enable surface functionalization through the adaption of optical, mechanical and chemical surface properties. Their structural sizes typically range from several micrometers down to less than 100 nanometers exhibiting a clear correlation with the polarization direction of the laser radiation. Various types of surface structures are classified, relevant control parameters are identified, and their material specific formation mechanisms are analyzed for different types of inorganic solids, i.e., metals, semiconductors, and dielectrics, through time-resolved optical experiments [2-4] and theoretical simulations [4,5]. Finally, technological applications featuring surface functionalization in the fields of optics, fluidics, medicine, and tribology are discussed [6].

 

[1] J. Bonse et al., “Laser-induced periodic surface structures – a scientific evergreen”, IEEE Journal of Selected Topics in Quantum Electronics 23 (2017), 9000615.

[2] K. Sokolowski-Tinten et al., “Short-pulse laser induced transient structure formation and ablation studied with time-resolved coherent XUV-scattering”, AIP Conference Proceedings 1278 (2010), 373.

[3] S. Höhm et al., “Femtosecond diffraction dynamics of laser-induced periodic surface structures on fused silica”, Applied Physics Letters 102 (2013), 054102.

[4] J. Bonse et al., “On the role of surface plasmon polaritons in the formation of laser-induced periodic surface structures upon irradiation of silicon by femtosecond laser pulses”, Journal of Applied Physics 106 (2009), 104910.

[5] A. Rudenko et al., “Spontaneous periodic ordering on the surface and in the bulk of dielectrics irradiated by ultrafast laser: a shared electromagnetic origin”, Scientific Reports 7 (2017), 12306.

[6] J. Bonse et al., “Applications of laser-induced periodic surface structures (LIPSS)”, Proceedings of SPIE 10092 (2017), 100920N.

 

Termin:                            18. November 2019 um 11:00 Uhr im Seminarraum

Veranstaltungsort:           Laser-Laboratorium Göttingen e.V., Hans-Adolf-Krebs-Weg 1, 37077 Göttingen

 

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