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- Fabrication of frequency-selective surface structures by femtosecond laser ablation of gold films
- Mizeikis, Vygantas; Juodkazis, Saulius; Sun, Kai; Misawa, Hiroaki
- Simple frequency-selective surface (FSS) structures consisting of two-dimensional (2D) triangular lattices of circular apertures with an aperture diameter of about 0.6-0.8 μm and a lattice period of 1.0 and 2.0 μm were fabricated by femtosecond laser ablation of thin gold films deposited on glass substrates. The fabricated samples were found to exhibit spectral transmission bands at infrared wavelengths, and significant surface plasmonic (SP) local enhancement of the near-field near the metal’s surface according to experimental transmission measurements and theoretical simulation by Finite-Difference Time-Domain (FDTD) technique. These results indicate versatility of femtosecond laser ablation technique for rapid prototyping of metallic FSS and plasmonic structures.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
- Journal of Laser Micro/Nanoengineering, Vol. 5, no. 2 (Jun 2010), pp. 115-120
- Publication year
- Japan Laser Processing Society
- Publisher URL
- Copyright © 2010 Japan Laser Processing Society. This paper was published in the Journal of Laser Micro/Nanoengineering and is made available as an electronic reprint with permission of JLPS. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.