Second harmonic generation from closed packed hexagonal structure of nano-nickel arrays

A closed packed hexagonal structure of nickel nanoparticles was fabricated by deposition of thin nickel films on self-assembled polystyrene micron spheres, which were made of nanospherical lithography in conjunction with left-off the micro spheres. The optical second harmonic generation from these p...

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Bibliographic Details
Published in:Optics communications 2007-12, Vol.280 (2), p.477-481
Main Authors: Liu, Chieh-Chun, Lue, Juh-Tzeng
Format: Article
Language:English
Subjects:
Exact sciences and technology
Frequency conversion
harmonic generation, including high-order harmonic generation
Fundamental areas of phenomenology (including applications)
Nano-nickel arrays
Nonlinear optics
Optical materials
Optics
Photonic bandgap materials
Photonic crystals
Physics
Surface second harmonic generation
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Description
Summary:A closed packed hexagonal structure of nickel nanoparticles was fabricated by deposition of thin nickel films on self-assembled polystyrene micron spheres, which were made of nanospherical lithography in conjunction with left-off the micro spheres. The optical second harmonic generation from these periodically arrayed nickel nanoparticles reveals intensity with a value much larger than that generated from a uniform nickel-film of the same thickness. Quasi phase matching contributed from Bragg wave vectors of the periodic arrayed nickel nanoparticles can satisfactorily express this enhancement.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2007.08.061