Efficient surface processing by ultrafast XUV/NIR dual action

T. Mocek; K. Jakubczak; J. Chalupsky; S. B. Park; G. H. Lee; T. K. Kim; C. H. Nam; V. Hajkova; M. Toufarova; L. Gemini; D. Margarone; L. Juha; B. Rus

doi:10.1117/12.904949

12 January 2012 Efficient surface processing by ultrafast XUV/NIR dual action

T. Mocek, K. Jakubczak, J. Chalupsky, S. B. Park, G. H. Lee, T. K. Kim, C. H. Nam, V. Hajkova, M. Toufarova, L. Gemini, D. Margarone, L. Juha, B. Rus

Author Affiliations +

Proceedings Volume 8206, Pacific Rim Laser Damage 2011: Optical Materials for High Power Lasers; 82061H (2012) https://doi.org/10.1117/12.904949
Event: Pacific Rim Laser Damage Symposium: Optical Materials for High Power Lasers, 2011, Shanghai, China

Abstract

We have developed a novel method for efficient structuring of the surface of materials by applying femtosecond near infrared laser pulses simultaneously with a weak extreme ultraviolet beam, which leads to a very strong radiation-matter interaction and brings a dramatic increase of the surface processing speed. We present our recent experimental results on surface nanostructuring of thin films of amorphous carbon and polymethyl methacrylate deposited on bulk substrates and discuss the underlying physical mechanisms. In the case of amorphous carbon, large areas of laser-induced periodic surface structures with a spatial period of 550 nm were created, having their origin in laser-induced convective currents. Our method provides a powerful tool for fast modification of tribological properties of the irradiated sample.

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T. Mocek, K. Jakubczak, J. Chalupsky, S. B. Park, G. H. Lee, T. K. Kim, C. H. Nam, V. Hajkova, M. Toufarova, L. Gemini, D. Margarone, L. Juha, and B. Rus "Efficient surface processing by ultrafast XUV/NIR dual action", Proc. SPIE 8206, Pacific Rim Laser Damage 2011: Optical Materials for High Power Lasers, 82061H (12 January 2012); https://doi.org/10.1117/12.904949

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