Heat-assisted magnetic recording by a near-field transducer with efficient optical energy transfer

WA Challener, C Peng, AV Itagi, D Karns, W Peng… - Nature …, 2009 - nature.com
Although near-field microscopy has allowed optical imaging with sub-20 nm resolution, the
optical throughput of this technique is notoriously small. As a result, applications such as …

Plasmonic engineering of singlet oxygen generation

Y Zhang, K Aslan, MJR Previte… - Proceedings of the …, 2008 - National Acad Sciences
In this article, we report metal-enhanced singlet oxygen generation (ME1O2). We
demonstrate a direct relationship between the singlet oxygen yield of a common …

Nanoring Plasmon Waveguides at Optical Communication Band

KY Jung, FL Teixeira, RM Reano - Journal of Lightwave …, 2007 - ieeexplore.ieee.org
We design and investigate plasmon waveguides based on linear arrays of Au nanorings in
an SiO 2 host for use in an optical communication band (lambda~ 1550 nm). Nanoring …

Near-field optics for heat-assisted magnetic recording (experiment, theory, and modeling)

WA Challener, AV Itagi - Modern Aspects of Electrochemistry No. 44 …, 2009 - Springer
One application of near-field transducers (NFT) is in heat-assisted magnetic recording
(HAMR). HAMR is similar to conventional magneto-optical (MO) recording in that the data …

Comparison of FDTD numerical computations and analytical multipole expansion method for plasmonics-active nanosphere dimers

A Dhawan, SJ Norton, MD Gerhold, T Vo-Dinh - Optics express, 2009 - opg.optica.org
This paper describes a comparative study of finite-difference time-domain (FDTD) and
analytical evaluations of electromagnetic fields in the vicinity of dimers of metallic …

Optical near-field excitations on plasmonic nanoparticle-based structures

S Foteinopoulou, JP Vigneron, C Vandenbem - Optics Express, 2007 - opg.optica.org
We investigate optical excitations on single silver nanospheres and nanosphere composites
with the Finite Difference Time Domain (FDTD) method. Our objective is to achieve …

Metal-enhanced fluorescence from nanoparticulate zinc films

K Aslan, MJR Previte, Y Zhang… - The Journal of Physical …, 2008 - ACS Publications
A detailed study of metal-enhanced fluorescence (MEF) from fluorophores in the blue-to-red
spectral region placed in close proximity to thermally evaporated zinc nanostructured films is …

Models of near-field spectroscopic studies: comparison between finite-element and finite-difference methods

T Grosges, A Vial, D Barchiesi - Optics Express, 2005 - opg.optica.org
We compare the numerical results obtained by the Finite Element Method (FEM) and the
Finite Difference Time Domain Method (FDTD) for near-field spectroscopic studies and …

Plasmon spectra of nanospheres under a tightly focused beam

NM Mojarad, V Sandoghdar, M Agio - JOSA B, 2008 - opg.optica.org
We study the modification of the far-field cross sections and the near-field enhancement for
gold and silver nanospheres illuminated by a tightly focused beam. Using a multipole …

Ridge waveguide as a near field aperture for high density data storage

K Şendur, W Challener, C Peng - Journal of Applied Physics, 2004 - pubs.aip.org
The performance of the ridge waveguide as a near-field aperture in data storage systems is
investigated. Finite element method (FEM) and finite-difference time-domain (FDTD) based …