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- Fabrice Pardo, Patrick Bouchon, Riad Haïdar, Jean-Luc Pelouard
- Physical review letters
- 2011

We investigate the mechanisms involved in the funneling of optical energy into subwavelength grooves etched on a metallic surface. The key phenomenon is unveiled thanks to the decomposition of the electromagnetic field into its propagative and evanescent parts. We unambiguously show that the funneling is not due to plasmonic waves flowing toward the… (More)

- Patrick Bouchon, Charlie Koechlin, Fabrice Pardo, Riad Haïdar, Jean-Luc Pelouard
- Optics letters
- 2012

In this Letter, we demonstrate experimentally that a patchwork of four metal-insulator-metal patches leads to an unpolarized wideband omnidirectional infrared absorption. Our structure absorbs 70% of the incident light on a 2.5 μm bandwidth at 8.5 μm. It paves the way to the design of wideband efficient plasmonic absorbers in the infrared spectrum.

- Sylvain Maine, Charlie Koechlin, +6 authors Riad Haïdar
- Applied optics
- 2012

We retrieve the complex optical index of single-walled carbon nanotube (CNT) films in the 0.6-800 μm spectral range. Results are obtained from a complete set of optical measurements, reflection and transmission, of free-standing CNT films using time domain spectroscopy in the terahertz (THz) and Fourier transform infrared (IR) spectroscopy in the… (More)

- M Baudrier-Raybaut, R Haïdar, Ph Kupecek, Ph Lemasson, E Rosencher
- Nature
- 2004

Three-wave mixing in nonlinear materials--the interaction of two light waves to produce a third--is a convenient way of generating new optical frequencies from common laser sources. However, the resulting optical conversion yield is generally poor, because the relative phases of the three interacting waves change continuously as they propagate through the… (More)

- Guillaume Druart, Nicolas Guérineau, +5 authors Manuel Fendler
- Applied optics
- 2009

We present an original and compact optical system inspired by the unusual eyes of a Strepsipteran insect called Xenos peckii. It is designed for a field of view of 30 degrees and is composed of multiple telescopes. An array of prisms of various angles is placed in front of these telescopes in order to set a different field of view for each channel. This… (More)

- Guillaume Druart, Nicolas Guérineau, Riad Haïdar, Jérôme Primot, Pierre Chavel, Jean Taboury
- Journal of the Optical Society of America. A…
- 2007

Tolerance in angles of continuously self-imaging gratings (CSIGs) is explored. The degradation in angle of the shape of the point-spread function is theoretically investigated and illustrated by simulations and experiments. The formalism presented is inspired by the one used for classical lenses and can be easily generalized to diffraction gratings. It… (More)

- Stéphane Collin, Grégory Vincent, Riad Haïdar, Nathalie Bardou, Sylvain Rommeluère, Jean-Luc Pelouard
- Physical review letters
- 2010

We report nearly perfect optical transmission (87%) through freestanding metallic gratings with narrow slits, as the experimental demonstration of the theoretical prediction by Porto et al. [Phys. Rev. Lett. 83, 2845 (1999)10.1103/PhysRevLett.83.2845]. In addition, we show that the Fano line shape of transmission spectra reveals the interplay between… (More)

- Petru Ghenuche, Grégory Vincent, +4 authors Stéphane Collin
- Physical review letters
- 2012

We demonstrate that almost 100% of incident photons can interact with a monolayer of scatterers in a symmetrical environment. Nearly perfect optical extinction through free-standing transparent nanorod arrays has been measured. The sharp spectral opacity window, in the form of a characteristic Fano resonance, arises from the coherent multiple scattering in… (More)

- Patrick Bouchon, Fabrice Pardo, Riad Haïdar, Jean-Luc Pelouard
- Journal of the Optical Society of America. A…
- 2010

We present a B-spline modal method for analyzing a stack of complex structured layers. Thanks to a B-spline approximation of the field, we solve the Maxwell equations. Diffraction calculation is based on the scattering matrices algorithm. We prove a good convergence of this method. Moreover, B-spline approximation results in very sparse matrices, which are… (More)

- Charlie Koechlin, Patrick Bouchon, Fabrice Pardo, Jean-Luc Pelouard, Riad Haïdar
- Optics express
- 2013

We show that a periodic array of metal-insulator-metal resonators can be described as a high refractive index metamaterial. This approach permits to obtain analytically the optical properties of the structure and thus to establish conception rules on the quality factor or on total absorption. Furthermore, we extend this formalism to the combination of two… (More)