TITLE

Design of plasmonic near field plate at optical frequency

AUTHOR(S)
Shi, Haofei; Jay Guo, L.
PUB. DATE
April 2010
SOURCE
Applied Physics Letters;4/5/2010, Vol. 96 Issue 14, p141107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We propose a design of near field plate for deep subwavelength super-focusing at optical frequency. The method used antisymmetric surface plasmon mode to generate abrupt π phase change within small fraction of a wavelength, while varied thin metallic film thickness to control the amplitude profile of the near field distribution. The numerical simulation result shows a λ/5 resolution at focus plane for the designed near field plate at the wavelength of 1550 nm, which is due to the superposition of the near field phase and amplitude distribution.
ACCESSION #
49071266

 

Related Articles

  • Transmission of light by a single subwavelength cylindrical hole in metallic films. Ming Bai; García, N. // Applied Physics Letters;10/2/2006, Vol. 89 Issue 14, p141110 

    This letter presents theory and finite-difference time-domain calculations in excellent agreement with experiments for the transmission of a single subwavelength cylindrical hole in Ag metallic films. The authors discuss the very large enhancement in transmission by single holes in terms of...

  • Low-power all-optical switch by superposition of red and green laser irradiation in thin-film cadmium sulfide on glass. Erlacher, A.; Miller, H.; Ullrich, B. // Journal of Applied Physics;3/1/2004, Vol. 95 Issue 5, p2927 

    All-optical transmission switching is observed by superposition of continuous red (623.8 nm) and green (532 nm) laser light in a thin-film CdS on glass. The results demonstrate that all-optical digitizing can be realized by fairly simple means at modest laser powers not exceeding 50 mW. The...

  • Elastic deformation of coating/substrate composites in axisymmetric indentation. Sakai, M.; Zhang, J.; Matsuda, A. // Journal of Materials Research;Aug2005, Vol. 20 Issue 8, p2173 

    Elastic deformation of coating/substrate composites was examined for axisymmetric indentations with three different geometries of flat-ended cylinder, sphere, and cone. Intensive theoretical considerations were made for the Boussinesq problems not only in its Fredholm integral equation of the...

  • An exact solution to the Helmholtz equation for a quasi-Gaussian beam in the form of a superposition of two sources and sinks with complex coordinates. Sapozhnikov, O. // Acoustical Physics;Jan2012, Vol. 58 Issue 1, p41 

    An exact solution to the Helmholtz equation is proposed. The solution describes a quasi-Gaussian beam with an arbitrary width and has the form of a superposition of sources and sinks with complex coordinates. It is shown that such a beam always lacks a component that propagates against the...

  • Coherent superposition of exciton states in quantum dots induced by surface plasmons. Gómez, D. E.; Vernon, K. C.; Mulvaney, P.; Davis, T. J. // Applied Physics Letters;2/15/2010, Vol. 96 Issue 7, p073108 

    We present an experimental demonstration of strong optical coupling between CdSe quantum dots of different sizes which is induced by a surface plasmon propagating on a planar silver thin film. Attenuated total reflection measurements demonstrate the hybridization of exciton states, characterized...

  • Improved red-response in thin film a-Si:H solar cells with soft-imprinted plasmonic back reflectors. Ferry, Vivian E.; Verschuuren, Marc A.; Li, Hongbo B. T.; Schropp, Ruud E. I.; Atwater, Harry A.; Polman, Albert // Applied Physics Letters;11/2/2009, Vol. 95 Issue 18, p183503 

    The impact of controlled nanopatterning on the Ag back contact of an n-i-p a-Si:H solar cell was investigated experimentally and through electromagnetic simulation. Compared to a similar reference cell with a flat back contact, we demonstrate an efficiency increase from 4.5% to 6.2%, with a 26%...

  • Spectral analysis of enhanced third harmonic generation from plasmonic excitations. Li, G. X.; Li, T.; Liu, H.; Li, K. F.; Wang, S. M.; Zhu, S. N.; Cheah, K. W. // Applied Physics Letters;6/27/2011, Vol. 98 Issue 26, p261909 

    We experimentally achieved enhanced third harmonic generation (THG) from hole-array in gold film. The surface plasmon polarition excitations, considered as the major contribution to this THG enhancement, are elaborately studied by a spectrum-resolved femto-second laser system. The momentum...

  • Near-Field Optical Imaging of a Porous Au Film: Influences of Topographic Artifacts and Surface Plasmons. Lin, Yu-Hsuan; Händel, Benjamin; Huang, Hung; Chen, Hsiang-An; Chen, Yung-Fu; Lin, Heh-Nan; Tsai, Din // Plasmonics;Jun2013, Vol. 8 Issue 2, p377 

    In this work, near-field scanning optical microscopy is employed to study a porous Au film and the direct observation of topographic artifacts and surface plasmon influences is revealed. Under tip illumination, topographic artifacts are found to be present in a reflection mode optical image but...

  • Enlarging the bandwidth of nanoscale propagating plasmonic modes in deep-subwavelength cylindrical holes. Catrysse, Peter B.; Fan, Shanhui // Applied Physics Letters;10/29/2007, Vol. 91 Issue 18, p181118 

    Subwavelength cylindrical holes in optically thick metallic films always support a propagating HE11 mode near the surface plasmon frequency, regardless of how small the holes are. For holes filled with a uniform dielectric material, the bandwidth of the HE11 mode asymptotically approaches zero...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics