Controllable space selective precipitation of copper nanoparticles in borosilicate glasses using ultrafast laser irradiation
- Publication Type:
- Journal Article
- Journal of Non-Crystalline Solids, 2011, 357 (11-13), pp. 2380 - 2383
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Transparent glasses containing copper nanoparticles are promising materials for ultrafast all-optical switches in the THz region due to their wide range of resonant absorption frequencies, ultrafast time response, as well as large third-order nonlinear optical coefficients associated with the surface plasmon resonance (SPR) in the visible region. In this paper, three dimension controllable precipitation of copper nanoparticles inside a borosilicate glass by irradiation of femtosecond laser pulses is studied. According to the designed program, different patterns made up of copper nanoparticles can be induced inside the glass sample. Absorption spectra are used to confirm the precipitation of copper nanoparticles. The precipitated nanoparticles can be space-selectively "dissolved" by the second time femtosecond laser irradiation. The involved mechanisms are discussed. Copyright © 2010 Published by Elsevier B.V. All rights reserved.
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