Publications of the Research Group Computational Photonics

Prof. Dr. Antonio Calà Lesina

Coloring and color enhancement on noble metals rendered by plasmonic effects via multi-burst picosecond pulses

authored by
J. M. Guay, A. Cala'Lesina, J. S. Baxter, P. G. Gordon, S. T. Barry, L. Ramunno, P. Berini, A. Weck

We report the angle-independent creation of full color palettes on the surface of silver, gold, copper and aluminum. We show significant color saturation of up to ∼69% and an increase in the lightness range by up to ∼ 60% with the use of multi-burst picosecond pulses. Finite-difference time-domain (FDTD) simulations show that high-spatial frequency LIPSS (HSFL) are responsible for the improvements. In addition, we show the passivation and tuning of the colors with the thickness of alumina deposited by atomic layer deposition.

External Organisation(s)
University of Ottawa
Carleton University
Conference contribution
Publication date
Publication status
Peer reviewed
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics
Electronic version(s) (Access: Closed)