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- Title
Linear and Second-Order Nonlinear Optical Properties of Arrays of Noncentrosymmetric Gold Nanoparticles.
- Authors
Tuovinen, Hemmo; Kauranen, Martti; Jefimovs, Konstantins; Vahimaa, Pasi; Vallius, Thomas; Turunen, Jari; Tkachenko, Nikolai V.; Lemmetyinen, Helge
- Abstract
The optical properties of nanoscopic arrays of metal particles are dominated by plasmon resonances and electromagnetic interaction between the particles. We use electron-beam lithography to prepare arrays of noncentrosymmetric gold particles and study their linear and second-order nonlinear optical properties. By varying the orientation of the particles in a fixed lattice, we observe shifts in the polarized linear extinction spectra. The second-harmonic generation efficiencies of the two types of samples differ by up to 60%. The results show that the properties of the samples are sensitive to the smallest details of their structure.
- Subjects
ELECTRON beam lithography; GOLD; OPTICAL properties
- Publication
Journal of Nonlinear Optical Physics & Materials, 2002, Vol 11, Issue 4, p421
- ISSN
0218-8635
- Publication type
Article
- DOI
10.1142/S0218863502001103