Nonlinear optical characterization of the gold nanoparticles coated by the thiols
AbstractStructured nanomaterials have great potential applications based on their unusual optical properties, such as a negative refractive index , plasmon waveguiding  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.
Full Text: PDF
- J.B. Pendry, "Negative Refraction Makes a Perfect Lens", Phys. Rev. Lett. 85, 3966 (2000).[CrossRef]
- 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]
- M. Sheik-Bahae, A.A. Said, E.W. Van Stryland, "High-sensitivity, single-beam n2 measurements", Opt. Lett. 14, 955 (1989). [CrossRef]
- 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]
- B.E.A. Saleh, M.C. Teich, Fundamentals of Photonics (John Wiley & Sons, Inc., second edition, 2007).
How to Cite
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.