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Spectral response of plasmon resonant nanoparticles with a non-regular shape

Publications associées (54)

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Wavelength dependent optical force on elliptical silver cylinders at plasmon resonance

Hans Peter Herzig

We use rigorous diffraction theory to analyze the force on elliptical cylinders made from silver as a function of the elongation. We find that, when the wires are illuminated at the plasmon wavelength and placed in a highly focused Gaussian beam, they are ...

2004

Analyzing the scattering properties of coupled metallic nanoparticles

Hans Peter Herzig

We apply the boundary element method to the analysis of the plasmon response of systems that consist of coupled metallic nanoscatterers. For systems made of two or more objects, the response depends strongly on the individual particle behavior as well as o ...

2004

Plasmon resonances in nanowires with a non-regular cross-section

Olivier Martin

We investigate numerically the spectrum of plasmon resonances for metallic nanowires with a non-regular cross-section in the 20-50 nm range. After briefly recalling the physical properties of metals at optical frequencies, we point out the intrinsic diffic ...

2003

Surface plasmon illumination scheme for contact lithography beyond the diffraction limit

Olivier Martin

A novel local illumination scheme for optical lithography is proposed. It is based on the excitation of a surface plasmon on a metal film incorporated into a polymer light coupling mask for contact lithography. The electromagnetic field associated with the ...

2003

Non-regularly shaped plasmon resonant nanoparticle as localized light source for near-field microscopy

Olivier Martin

We study numerically two-dimensional nanoparticles with a non-regular shape and demonstrate that these particles can support many more plasmon resonances than a particle with a regular shape (e.g. an ellipse). The electric field distributions associated wi ...

2001

Plasmon resonances of silver nanowires with a nonregular cross section

Olivier Martin

We investigate numerically the spectrum of plasmon resonances for metallic nanowires with a nonregular cross section, in the 20-50 nm range. We first consider the resonance spectra corresponding to nanowires whose cross sections form different simplexes. T ...

2001

Dramatic localized electromagnetic enhancement in plasmon resonant nanowires

Olivier Martin

We investigate numerically the plasmon resonances of 10-50 nm nanowires with a non-elliptical section. Such wires have a much more complex behavior than elliptical wires and their resonances span a larger frequency range. The field distribution at the surf ...

2001

Light propagation and scattering in stratified media: a Green's tensor approach

Olivier Martin

We present a new technique for computing the electromagnetic field that propagates and is scattered in three-dimensional structures formed by bodies embedded in a stratified background. This fully vectorial technique is based on the Green's tensor associat ...

2001

Retardation-induced plasmon resonances in coupled nanoparticles

Olivier Martin

We study the coupling induced by retardation effects when two plasmon-resonant nanoparticles are interacting. This coupling leads to an additional resonance, the strength of which depends on a subtle balance between particle separation and size. The scatte ...

Optical Society of America2001

Plasmon resonant coupling in metallic nanowires

Olivier Martin

We investigate the plasmon resonances of interacting silver nanowires with a 50 nm diameter. Both non-touching and intersecting configurations are investigated. While individual cylinders exhibit a single plasmon resonance, we observe uch ore complex spect ...

Optical Society of America2001