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- Centre National de la Recherche ScientifiqueFR23 papers
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23 papers · 1 filter
New horizons in near-zero refractive index photonics and hyperbolic metamaterials
Michaël Lobet, Nathaniel Kinsey, Iñigo Liberal +7
The engineering of the spatial and temporal properties of both the electric permittivity and the refractive index of materials is at the core of photonics. When vanishing to zero,…
Versatile optical frequency combs based on multi-seeded femtosecond optical parametric generation
Mikhail Roiz, Markku Vainio
This study proposes and demonstrates a versatile method for near and mid-infrared optical frequency comb generation using multi-seeded femtosecond optical parametric generation. Th…
Nonlinear optical response of Type-II Weyl fermions in two dimensions
Yaraslau Tamashevich, Leone Di Mauro Villari, Marco Ornigotti
We present a theoretical model to study the nonlinear optical response of materials with a low-energy spectrum characterised by strongly tilted, type-II, Weyl cones in two dimensio…
Recent advances in supercontinuum generation in specialty optical fibers [Invited]
T. Sylvestre, E. Genier, A. N. Ghosh +10
The physics and applications of fiber-based supercontinuum (SC) sources have been a subject of intense interest over the last decade, with significant impact on both basic science…
SSR-PR: Single-shot Super-Resolution Phase Retrieval based two prior calibration tests
Peter Kocsis, Igor Shevkunov, Vladimir Katkovnik +2
We propose a novel approach and algorithm based on two preliminary tests of the optical system elements to enhance the super-resolved complex-valued imaging. The approach is develo…
High-accuracy longitudinal position measurement using self-accelerating light
Shashi Prabhakar, Stephen Plachta, Marco Ornigotti +1
Radially self-accelerating light exhibits an intensity pattern that describes a spiraling trajectory around the optical axis as the beam propagates. In this article, we show in sim…