Enhancement of the Raman Scattering and the Third-Harmonic Generation in Silicon Nanowires

Authors

  • L.A. Golovan Physics Department, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia NRC ‘Kurchatov Institute’, Moscow, 123182, Russia
  • K.V. Bunkov Physics Department, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia
  • K.A. Gonchar Physics Department, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia
  • V.Yu. Timoshenko Physics Department, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia
  • L.A. Osminkina Physics Department, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia
  • D.V. Petrov D.V. Skobeltsyn Nuclear Physics Institute, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia
  • V.S. Marshov Physics Department, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia
  • V.A. Sivakov D.V. Skobeltsyn Nuclear Physics Institute, M.V. Lomonosov Moscow State University, Moscow, 199991, Russia
  • M.N. Kulmas Institut für Photonische Technologien, Jena, D-07745, Germany

DOI:

https://doi.org/10.12684/alt.1.81

Abstract

We studied features of Raman scattering and the third-harmonic generation in silicon nanowire (SiNW) ensembles formed by means of chemical etching of crystalline silicon (c-Si) wafers with preliminary deposited silver nanoparticles in hydrofluoric acid. The c-Si wafers of different crystallographic orientations and doping levels were used, which results in variations of the formed nanostructure size and degree of order. For the excitation at 1064 nm the ratio of Raman scattering signals for SiNWs and those for initial c-Si wafer ranges from 2 to 5, whereas for shorter wavelengths the ratio increases for more ordered arrays of SiNWs of greater diameter and decreases for less ordered SiNW structures. The TH signals in SiNW ensembles demonstrate both fall and one- or two-orders-of-magnitude rise in comparison with c-Si depending on the structure of the SiNW ensemble. The obtained results are explained by the effect of partial light localization in SiNW ensembles.
ALT 12 Conference, Gwatt, Sept. 2 -6, Switzerland

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Published

2012-11-01

How to Cite

Golovan, L., Bunkov, K., Gonchar, K., Timoshenko, V., Osminkina, L., Petrov, D., Marshov, V., Sivakov, V., & Kulmas, M. (2012). Enhancement of the Raman Scattering and the Third-Harmonic Generation in Silicon Nanowires. ALT Proceedings, 1. https://doi.org/10.12684/alt.1.81

Issue

Vol. 1 (2012)

Section

Laser diagnostics and spectroscopy

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