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Journal of Nanomaterials
Volume 2015, Article ID 298913, 7 pages
Research Article

FDTD Modelling of Silver Nanoparticles Embedded in Phase Separation Interface of H-PDLC

1Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, Shanghai 200093, China
2University of Shanghai for Science and Technology, Shanghai 200093, China

Received 28 November 2014; Revised 9 February 2015; Accepted 13 February 2015

Academic Editor: Yanjun Liu

Copyright © 2015 Kun Gui et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We report localized surface plasmon resonance (LSPR) of silver nanoparticles (NPs) embedded in interface of phase separation of holographic polymer-dispersed liquid crystal (H-PDLC) gratings using Finite-Difference Time Domain method. We show that silver NPs exhibit double resonance peak at the interface, and these peaks are influenced by the angle of incident light. We observe a blue shift of the wavelength of resonance peak as the incident angle increases. However, the location of silver NPs at the interface has nearly no effect on the wavelength of resonance peak. Also we show near-field and far-field properties surrounding silver NPs and find that field distribution can be controlled through rotation of incident angle. Therefore, LSPR properties of silver NPs within H-PDLC gratings can be excited by appropriate wavelength and angle of the incident light.