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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 11 — Jun. 2, 2014
  • pp: 13234–13243

Electron-beam lithography of plasmonic nanorod arrays for multilayered optical storage

Adam B. Taylor, Pierrette Michaux, Abu S. M. Mohsin, and James W. M. Chon  »View Author Affiliations

Optics Express, Vol. 22, Issue 11, pp. 13234-13243 (2014)

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In this paper we demonstrate multilayer fabrication of plasmonic gold nanorod arrays using electron-beam lithography (EBL), and show that this structure could be used for multilayered optical storage media capable of continuous-wave (cw) laser readout. The gold nanorods fabricated using the EBL method are aligned perfectly and homogeneous in size and shape, allowing the polarization response of surface plasmon resonance (SPR) to be observed through ensemble array. This property in turn permits polarization detuned SPR readout possible and other manipulations such as progressively twisted arrays through the multilayers to make cw readout possible through deeper layers without too much extinction loss. The layered gold nanorod arrays are separated by thick spacer layer to enable the optical resolving of individual layers. Using this method, we demonstrated four-fold reduction in extinction loss for cw readout in three-layer structure. The current technique of multilayer fabrication and readout can be useful in 3-dimensional fabrication of plasmonic circuits and structures.

© 2014 Optical Society of America

OCIS Codes
(210.4810) Optical data storage : Optical storage-recording materials
(220.4000) Optical design and fabrication : Microstructure fabrication
(240.6680) Optics at surfaces : Surface plasmons
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:

Original Manuscript: March 11, 2014
Revised Manuscript: May 9, 2014
Manuscript Accepted: May 20, 2014
Published: May 23, 2014

Adam B. Taylor, Pierrette Michaux, Abu S. M. Mohsin, and James W. M. Chon, "Electron-beam lithography of plasmonic nanorod arrays for multilayered optical storage," Opt. Express 22, 13234-13243 (2014)

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