Waveguiding in Surface Plasmon Polariton Band Gap Structures
Using near-field optical microscopy, we investigate propagation and scattering of surface plasmon polaritons (SPP's) excited in the wavelength range of 780-820 nm at nanostructu...
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1,100 publications
Atomic force microscopy and surface-enhanced Raman spectroscopy. I. Ag island films and Ag film over polymer nanosphere surfaces supported on glass
The surface roughness and nanometer scale structure of Ag films used for surface-enhanced Raman scattering (SERS) are characterized using atomic force microscopy (AFM). Two impo...
Controlled manipulation of nanoparticles with an atomic force microscope
We report on the application of the atomic force microscope (AFM) to manipulate and position nanometer-sized particles with nanometer precision. The technique, which can be rega...
<i>A</i> <i>b</i> <i>i</i> <i>n</i> <i>i</i> <i>t</i> <i>i</i> <i>o</i> effective core potentials: Reduction of all-electron molecular structure calculations to calculations involving only valence electrons
A formalism is developed for obtaining ab initio effective core potentials from numerical Hartree–Fock wavefunctions and such potentials are presented for C, N, O, F, Cl, Fe, Br...
Quantum size effects on the optical band gap of microcrystalline Si:H
We have succeeded in fabricating the mostly crystallized Si:H materials having a wide optical band gap of up to 2.4 eV by means of a reactive sputtering technique with a low sub...
QUANTUM MECHANICAL INTERACTION-FREE MEASUREMENTS
A novel manifestation of nonlocality of quantum mechanics is presented. It is shown that it is possible to ascertain the existence of an object in a given region of space withou...
Assessing the vulnerability of species richness to anthropogenic climate change in a biodiversity hotspot
ABSTRACT Aim To compare theoretical approaches towards estimating risks of plant species loss to anthropogenic climate change impacts in a biodiversity hotspot, and to develop a...
<i>Gaia</i> Data Release 2
The second Gaia data release ( Gaia DR2) contains, beyond the astrometry, three-band photometry for 1.38 billion sources. One band is the G band, the other two were obtained by ...
A framework for the robust estimation of optical flow
The authors consider the problem of robustly estimating optical flow from a pair of images using a new framework based on robust estimation which addresses violations of the bri...
Refraction and geometry in Maxwell's equations
Abstract Computational studies of Maxwell's equations in complex geometries encountered in photonic band structure calculations run into difficulties when several length scales ...
Infrared and Raman Studies of Long-Wavelength Optical Phonons in Hexagonal Mo<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">S</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
Infrared and Raman measurements of lattice vibrations in hexagonal Mo${\mathrm{S}}_{2}$ have been made over the combined range 20-4000 ${\mathrm{cm}}^{\ensuremath{-}1}$. Two inf...