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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48115

Title: One-Shot Deep-UV Pulsed-Laser-Induced Photomodification of Hollow Metal Nanoparticles for High-Density Data Storage on Flexible Substrates
Authors: Chen YP
Wan D
Chen HL
Tseng SC
Wang LA
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2009-12
Issue Date: 2018-08-13T05:45:33Z
Publisher: ACS Nano
Abstract: Abstract: In this paper, we report a new optical data storage method: photomodification of hollow gold nanoparticle (HGN) monolayers induced by one-shot deep-ultraviolet (DUV) KrF laser recording. As far as we are aware, this study is the first to apply HGNs in optical data storage and also the first to use a recording light source for the metal nanoparticles (NPs) that is not a surface plasmon resonance (SPR) wavelength. The short wavelength of the recording DUV laser improved the optical resolution dramatically. We prepared HGNs exhibiting two absorbance regions: an SPR peak in the near-infrared (NIR) region and an intrinsic material extinction in the DUV region. A single pulse from a KrF laser heated the HGNs and transformed them from hollow structures to smaller solid spheres. This change in morphology for the HGNs was accompanied by a significant blue shift of the SPR peak. Employing this approach, we demonstrated its patterning ability with a resolving power of a half-micrometer (using a phase mask) and developed a readout method (using a blue-ray laser microscope). Moreover, we prepared large-area, uniform patterns of monolayer HGNs on various substrates (glass slides, silicon wafers, flexible plates). If this spectral recording technique could be applied onto thin flexible tapes, the recorded data density would increase significantly relative to that of current rigid discs (e.g., compact discs).
Relation: 4(1) pp.165-173
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48115
Appears in Collections:[光電科學研究所] 期刊論文

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