Nonlinear optical characterization of the gold nanoparticles coated by the thiols

Authors

  • Piotr Lesiak
  • Michał Wójcik

DOI:

https://doi.org/10.4302/photon.%20lett.%20pl.v3i3.242

Abstract

Structured nanomaterials have great potential applications based on their unusual optical properties, such as a negative refractive index [1], plasmon waveguiding [2] or nonlinear optics. In this paper we present the nonlinear optical characterization of gold nanoparticles coated by thiols with the ratio of mesogenic to n-alkyl thiols varying from 1:2 to 1:1 in a toluene suspension using the Z-scan technique. The type of mesogenic molecule in the metal coating had a profound influence on the gold-cluster self-assembly. To check how these clusters affect the nonlinear properties we use two different polarizations of a laser beam - linear and circular.  

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References:
  1. J.B. Pendry, "Negative Refraction Makes a Perfect Lens", Phys. Rev. Lett. 85, 3966 (2000).[CrossRef]
  2. S.A. Maier, M.L. Brongersma, P.G. Kik, S. Meltzer, A.A.G. Requicha, H.A. Atwater, "Plasmonics?A Route to Nanoscale Optical Devices", Adv. Mater. 13, 1501 (2001). [CrossRef]
  3. M. Sheik-Bahae, A.A. Said, E.W. Van Stryland, "High-sensitivity, single-beam n2 measurements", Opt. Lett. 14, 955 (1989). [CrossRef]
  4. M. Sheik-Bahae, A.A. Said, T.H. Wei, D.J. Hagan, E.W. Van Stryland, "Sensitive measurement of optical nonlinearities using a single beam", J. Quant. Electr. 26, 760 (1990). [CrossRef]
  5. B.E.A. Saleh, M.C. Teich, Fundamentals of Photonics (John Wiley & Sons, Inc., second edition, 2007).

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Published

2011-09-29

How to Cite

[1]
P. Lesiak and M. Wójcik, “Nonlinear optical characterization of the gold nanoparticles coated by the thiols”, Photonics Lett. Pol., vol. 3, no. 3, pp. pp. 113–115, Sep. 2011.

Issue

Vol. 3 No. 3 (2011)

Section

Articles

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