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Home List of Titles Detuned surface plasmon resonance scattering of gold nanorods for continuous wave multilayered optical recording and readout
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/218465
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- Detuned surface plasmon resonance scattering of gold nanorods for continuous wave multilayered optical recording and readout
- Taylor, Adam B.; Kim, Jooho; Chon, James W. M.
- In a multilayered structure of absorptive optical recording media, continuous-wave laser operation is highly disadvantageous due to heavy beam extinction. For a gold nanorod based recording medium, the narrow surface plasmon resonance (SPR) profile of gold nanorods enables the variation of extinction through mulilayers by a simple detuning of the readout wavelength from the SPR peak. The level of signal extinction through the layers can then be greatly reduced, resulting more efficient readout at deeper layers. The scattering signal strength may be decreased at the detuned wavelength, but balancing these two factors results an optimal scattering peak wavelength that is specific to each layer. In this paper, we propose to use detuned SPR scattering from gold nanorods as a new mechanism for continuous-wave readout scheme on gold nanorod based multilayered optical storage. Using this detuned scattering method, readout using continuous-wave laser is demonstrated on a 16 layer optical recording medium doped with heavily distributed, randomly oriented gold nanorods. Compared to SPR on-resonant readout, this method reduced the required readout power more than one order of magnitude, with only 60 nm detuning from SPR peak. The proposed method will be highly beneficial to multilayered optical storage applications as well as applications using a continuous medium doped heavily with plasmonic nanoparticles.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
- Optics Express, Vol. 20, no. 5 (Feb 2012), pp. 5069-5081
- Publication year
- FOR Code(s)
- 0205 Optical Physics; 0906 Electrical and Electronic Engineering; 1005 Communications Technologies
- Detuning; Gold nanorods; Mulilayers; Optical readout; Optical recording; Optical storage; Scattering; Surface plasmon resonance
- Optical Society of America
- Publisher URL
- Copyright © 2012 Optical Society of America. This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.20.005069. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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