TITLE

Surface-plasmon resonance of a planar lollipop near-field transducer

AUTHOR(S)
Peng, Chubing
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/27/2009, Vol. 94 Issue 17, p171106
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Surface-plasmon resonance of a lollipop near-field transducer integrated in a planar solid immersion mirror for heat-assisted magnetic recording has been studied by pump-probe photothermal measurement and recording on a phase-change medium. Lollipops of 190 nm in disk diameter and 20-nm-thick were found to exhibit two resonant modes in 710–950 nm. Recording on a phase-change medium showed that the wavelength at the short resonant mode is not sensitive to the presence of a medium, while the resonance at the long wavelength exhibits significant redshift. On resonance, the plasmon efficiency enables the pronounced near-field optical recording.
ACCESSION #
38712333

 

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