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Silver superlens using antisymmetric surface plasmon modes.

Content Provider	Semantic Scholar
Author	Lee, Wook-Jae Kim, Jung-Hye Park, Hae Yong Lee, Myung-hyun
Copyright Year	2010
Abstract	Silver lenses having super-resolution are analyzed in terms of antisymmetric modes of surface plasmon which have the ability to amplify evanescent waves in UV region. Antisymmetric surface plasmon modes excited by subwavelength grating enhances the resolution and contrast of silver superlens. By using a 20 nm-thick silver superlens, the half-pitch resolution of approximately lambda(0)/8 can be achieved with good contrast at a free space wavelength of 435 nm. The resolution of silver superlens can also be improved using shorter illumination wavelength. We show that the thinner the lens, the better the imaging ability of the silver superlens due to the excitation of antisymmetric surface plasmon modes of higher propagation wave vectors. The thickness of lens is varied from 20 to 40 nm in a three layer system, SiO(2)-Ag-SiO(2). Obtained results illustrate that practical application for patterning periodic structures with good contrast and penetration depth can be achieved by using antisymmetric surface plasmon modes.
Starting Page	187
Ending Page	192
Page Count	6
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://koasas.kaist.ac.kr/bitstream/10203/20169/1/000276002500013.pdf
PubMed reference number	20389562v1
Alternate Webpage(s)	https://doi.org/10.1364/OE.18.005459
DOI	10.1364/oe.18.005459
Journal	Optics express
Volume Number	18
Issue Number	6
Language	English
Access Restriction	Open
Subject Keyword	Aspartate Excitation Lens (device) Nanostructured Materials Revision procedure Scientific Publication Sleep Apnea, Obstructive anatomical layer silver sulfadiazine wavelength
Content Type	Text
Resource Type	Article

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