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Timestamp: 2019-04-22 01:07:11+00:00

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Optical properties of metal island films (MIFs) can be combined with interference of dielectric coatings. A set of multilayer designs containing metal clusters reflecting different colours from front and back side of the coating was obtained by numerical optimization. The chosen designs presenting the range of feasible colours were deposited by electron beam evaporation. Spectrophotometric and ellipsometric measurements verified that the produced coatings present an excellent agreement with the optical performance calculated from the designs. Numerical optimization was verified as a useful method in designing of coatings containing MIFs. This approach can ease the implementation of metal clusters into multilayer designs and broaden the applications of MIFs.
U. Kreibig and M. Vollmer, Optical Properties of Metal Clusters (Springer, Berlin, 1995).
S. Kachan, O. Stenzel, and A. Ponyavina, “High-absorbing gradient multilayer coatings with silver nanoparticles,” Appl. Phys. B. 84(1-2), 281–287 (2006).
W. Gotschy, K. Vonmetz, A. Leitner, and F. R. Aussenegg, “Optical dichroism of lithographically designed silver nanoparticle films,” Opt. Lett. 21(15), 1099–1101 (1996).
J.-N. Yih, W.-C. Hsu, S.-Y. Tsai, and S.-J. Chen, “Enhanced readout signal of superresolution near-field structure disks by control of the size and distribution of metal nanoclusters,” Appl. Opt. 44(15), 3001–3005 (2005).
M. Lahav, A. Vaskevich, and I. Rubinstein, “Biological sensing using transmission surface plasmon resonance spectroscopy,” Langmuir 20(18), 7365–7367 (2004).
G. D. Sockalingum, A. Beljebbar, H. Morjani, J. F. Angiboust, and M. Manfait, “Characterization of island films as surface-enhanced Raman spectroscopy substrates for detecting low antitumor drug concentrations at single cell level,” Biospectroscopy 4(S5), S71–S78 (1998).
P. Heger, O. Stenzel, and N. Kaiser, “Metal island films for optics,” Proc. SPIE 5250, 21–28 (2004).
S. Husaini, L. Deych, and V. M. Menon, “Plasmon-resonance-induced enhancement of the reflection band in a one-dimensional metal nanocomposite photonic crystal,” Opt. Lett. 36(8), 1368–1370 (2011).
V. Janicki, J. Sancho-Parramon, and H. Zorc, “Gradient silver nanoparticle layers in absorbing coatings-experimental study,” Appl. Opt. 50(9), C228–C231 (2011).
M. Hövel, B. Gompf, and M. Dressel, “Dielectric properties of ultrathin metal films around the percolation threshold,” Phys. Rev. B 81(3), 035402 (2010).
A. J. de Vries, E. S. Kooij, H. Wormeester, A. A. Mewe, and B. Poelsema, “Ellipsometric study of percolation in electroless deposited silver films,” J. Appl. Phys. 101(5), 053703 (2007).
J. Sancho-Parramon, V. Janicki, and H. Zorc, “On the dielectric function tuning of random metal-dielectric nanocomposites for metamaterial applications,” Opt. Express 18(26), 26915–26928 (2010).
J. Sancho-Parramon, V. Janicki, and H. Zorc, “Tuning the effective dielectric function of thin film metal-dielectric composites by controlling the deposition temperature,” J. Nanophotonics 5(1), 051805/1–051805/8 (2011).
J. Bulíř, M. Novotný, A. Lynnykova, and J. Lančok, “Preparation of nanostructured ultrathin silver layer,” J. Nanophotonics 5, 051511/1–051511/10 (2011).
T. V. Amotchkina, V. Janicki, J. Sancho-Parramon, A. V. Tikhonravov, M. K. Trubetskov, and H. Zorc, “General approach to reliable characterization of thin metal films,” Appl. Opt. 50(10), 1453–1464 (2011).
T. V. Amotchkina, M. K. Trubetskov, A. V. Tikhonravov, V. Janicki, J. Sancho-Parramon, and H. Zorc, “Reliable characterization of thin metal-dielectric films,” Appl. Opt. (to be published).
J. A. Dobrowolski, S. Browning, M. Jacobson, and M. Nadal, “2007 topical meeting on optical interference coatings: manufacturing problem,” Appl. Opt. 47(13), C231–C245 (2008).
U. Beckers, O. Stenzel, S. Wilbrandt, U. Falke, and C. von Borczyskowski, “The optical absorption of ultrathin organic molecular films: the thickness dependence of the absorption line position,” J. Phys. Condens. Matter 10(8), 1721–1732 (1998).
T. V. Amotchkina, J. Sancho-Parramon, V. Janicki, M. K. Trubetskov, H. Zorc, and A. V. Tikhonravov, “Design of multilayer coatings containing metal island films,” presented at SPIE Optical System Design 2011, paper 8168–8, Marseille, France, 5–8 2011.
R. W. G. Hunt, Measuring colours (Fountain Press, London, 1998).
Fig. 1 Optical constants of Au MIF of 17.6 nm thickness and bulk Au  are shown together for comparison.
Fig. 2 Photographs of the samples reflection from the front side (above) and back side (below). Numbers 1, 2, 3, 4 and 5 correspond to samples TAD32, TAD7a, TAD7b, TAD8b and TAD91, respectively.
Fig. 3 Experimental (full line) and theoretical (dot) transmittance (T), total loss (L), reflectance from the front side (Ra) and back side (Rb) of the samples.
Table 1 Designs chosen for deposition.
Table 2 Comparison of the desired and obtained colour chromaticities.
Comparison of the desired and obtained colour chromaticities.

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