218 citations · 453 across the 6 of their papers we have counts for
6 papers
Enhanced Raman scattering mediated by large wave-vector surface plasmon polaritons
Tomas Lopez-Rios
Surface enhanced Raman scattering mediated by surface plasmons polaritons with wave vector much larger than those of light is considered. The excitation of these polaritons and the…
Role of commensurate arrangements in the optical response of metallic gratings
A. Barbara, J. Le Perchec, P. Quemerais +4
Light localization on commensurate arrangements of metallic sub-wavelength grooves is studied. We theoretically show that as the degree of commensuration tends to an irrational num…
Why metallic surfaces with grooves a few nanometers deep and wide may strongly absorb visible light
J. Le Perchec, P. Quemerais, A. Barbara +1
It is theoretically shown that nanometric silver lamellar gratings present very strong visible light absorption inside the grooves, leading to electric field intensities by several…
Controlling Strong Electromagnetic Fields at a Sub-Wavelength Scale
J. Le Perchec, P. Quemerais, A. Barbara +1
We investigate the optical response of two sub-wavelength grooves on a metallic screen, separated by a sub-wavelength distance. We show that the Fabry-Perot-like mode, already obse…
Efficient excitation of cavity resonances of subwavelength metallic gratings
P. Quemerais, A. Barbara, J. Leperchec +1
One dimensional rectangular metallic gratings enable enhanced transmission of light for specific resonance frequencies. Two kinds of modes participating to enhanced transmission ha…
Surface shape resonances in lamellar metallic gratings
T. Lopez-Rios, D. Mendoza, F. J. Garcia-Vidal +3
The specular reflectivity of lamellar gratings of gold with grooves 0.5 microns wide separated by a distance of 3.5 microns was measured on the 2000 cm - 7000 cm spec…