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Proceedings Paper

Fabrication of nonlinear light-guiding nanocomposite structures by metal ion implantation
Author(s): Sergey S. Sarkisov; Michael J. Curley; Eric K. Williams; Dariush Ila; Vasili L. Svetchnikov; Henny W. Zandbergen; G. A. Zykov; David B. Poker; Dale K. Hensley
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Paper Abstract

We analyze microstructure, linear and nonlinear optical properties of planar waveguides produced by implantation of MeV Ag ions into LiNbO3. The linear optical properties include spectrum of propagation modes, and optical absorption spectrum. The nonlinear properties include optical spectrum of nonlinear refractive index. Operation of the implanted crystal as an optical waveguide is due to modification of the linear refractive index of the implanted region. The samples as implanted do not show any light guiding. Heat treatment of the implanted samples makes planar light guides on the implanted surface. High- resolution electron microscopy reveals recrystallization of the host between the surface and the nuclear stopping region in the form of randomly oriented micro crystals. They make up a light guiding layer isolated from the bulk crystal by the low index nuclear stopping layer. Optical absorption has a peak at 430 nm. This peak is due to the surface plasmon resonance in metal nanoclusters formed in the host after implantation. Heat treatment of the silver implanted samples shifts the absorption peak to 550 nm. Relatively strong third order nonlinearity of the samples is due to the three orders of magnitude enhancement of the intrinsic intraband and interband electron component of polarizability in the vicinity of the surface plasmon resonance. The nonlinear refractive index of the samples (of the order of 10-10 cm2/W) was measured with the Z-scan technique using a picosecond laser source. Possible applications of the waveguides include ultra-fast photonic switches and modulators.

Paper Details

Date Published: 30 June 1999
PDF: 12 pages
Proc. SPIE 3790, Engineered Nanostructural Films and Materials, (30 June 1999); doi: 10.1117/12.351261
Show Author Affiliations
Sergey S. Sarkisov, Alabama A&M Univ. (United States)
Michael J. Curley, Alabama A&M Univ. (United States)
Eric K. Williams, Alabama A&M Univ. (United States)
Dariush Ila, Alabama A&M Univ. (United States)
Vasili L. Svetchnikov, Delft Univ. of Technology and Institute of Metal Physics (Netherlands)
Henny W. Zandbergen, Delft Univ. of Technology (Netherlands)
G. A. Zykov, Kiev Univ. (Ukraine)
David B. Poker, Oak Ridge National Lab. (United States)
Dale K. Hensley, Oak Ridge National Lab. (United States)


Published in SPIE Proceedings Vol. 3790:
Engineered Nanostructural Films and Materials
Akhlesh Lakhtakia; Russell F. Messier, Editor(s)

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