Effect of nanoholes on the plasmonic properties of star nanostructures

Zhu, Shaoli, Whittaker, Andrew K. and Blakey, Idriss (2011). Effect of nanoholes on the plasmonic properties of star nanostructures. In: Saulius Juodkazis and Min Gu, Proceedings of SPIE - International Society for Optical Engineering. Conference on Smart Nano-Micro Materials and Devices/SPIE Smart Nano + Micro Materials and Devices Forum, Melbourne, Australia, (82042M.1-82042M.6). 5-7 December 2011. doi:10.1117/12.905409


Author Zhu, Shaoli
Whittaker, Andrew K.
Blakey, Idriss
Title of paper Effect of nanoholes on the plasmonic properties of star nanostructures
Conference name Conference on Smart Nano-Micro Materials and Devices/SPIE Smart Nano + Micro Materials and Devices Forum
Conference location Melbourne, Australia
Conference dates 5-7 December 2011
Proceedings title Proceedings of SPIE - International Society for Optical Engineering   Check publisher's open access policy
Journal name Smart Nano-Micro Materials and Devices   Check publisher's open access policy
Place of Publication Bellingham, WA, United States
Publisher SPIE - International Society for Optical Engineering
Publication Year 2011
Sub-type Fully published paper
DOI 10.1117/12.905409
ISBN 978-0-8194-8845-9
ISSN 0277-786X
1996-756X
Editor Saulius Juodkazis
Min Gu
Volume 8204
Start page 82042M.1
End page 82042M.6
Total pages 6
Language eng
Abstract/Summary The transmission and localized electric field distribution of nanostructures are the most important parameters in the plasmonic field for nano-optics and nanobiosensors. In this paper, we propose a novel nanostructure which may be used for nanobiosensor applications. The effect of nanoholes on the plasmonic properties of star nanostructure was studied via numerical simulation, using the finite-difference time-domain (FDTD) method. In the model, the material type and size of the nanostructures was fixed, but the distance between the monotor and the surface of the nanoholes was varied. For example, nanoholes were located in the center of the nanostructures. The simulation method was as follows. Initially, the wavelength of incident light was varied from 400 to 1200 nm and the transmission spectrum and the electric field distribution were simulated. Then at the resonance wavelength (wavelength where the transmission spectrum has a minimum), the localized electric field distribution was calculated at different distances from the surface of the nanostructures. This study shows that the position of nanoholes has a significant effect on the transmission and localized electric field distribution of star nanostructures. The condition for achieving the maximum localized electric field distribution can be used in nano-optics and nanobiosensors in the future.
Keyword Nanoholes
Plasmonic
Optical properties
Nanostar
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Article #82042M

 
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