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L

L. Legratiet

Researcher at Centre national de la recherche scientifique

Publications -  18
Citations -  311

L. Legratiet is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Photonic crystal & Photonics. The author has an hindex of 8, co-authored 16 publications receiving 254 citations.

Papers
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Optically controlling the emission chirality of microlasers

TL;DR: In this article, an integrated microlaser where the chirality of the wavefront can be optically controlled is presented. But it is not shown that the scheme that is used, based on an effective spin-orbit coupling of photons in a semiconductor microcavity, can be extended to different laser architectures, thus paving the way to the realization of a new generation of OAM microlasers with tunable chIRality.
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Highly selective and compact tunable MOEMS photonic crystal Fabry-Perot filter

TL;DR: A compact and highly selective tunable filter using a Fabry-Perot resonator combining a bottom micromachined 3-pair-InP/air-gap Bragg reflector with a top photonic crystal slab mirror based on the coupling between radiated vertical cavity modes and waveguided modes of the photonic Crystal.
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Vortex Laser based on III-V semiconductor metasurface: direct generation of coherent Laguerre-Gauss modes carrying controlled orbital angular momentum

TL;DR: A surface-emitting laser is demonstrated, based on III-V semiconductor technology with an integrated metasurface, generating vortex-like coherent state in the Laguerre-Gauss basis, using a first order phase perturbation to lift orbital degeneracy of wavefunctions.
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Small volume excitation and enhancement of dye fluorescence on a 2D photonic crystal surface

TL;DR: An easy-to-implement scheme for fluorescence enhancement and observation volume reduction using photonic crystals (PhCs) as substrates for microscopy with large enhancement in the excitation in the near field region of the resonant mode.
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High quality beaming and efficient free-space coupling in L3 photonic crystal active nanocavities

TL;DR: Far-field measurements of L3 photonic crystal (PhC) cavities with high quality beaming by means of the so-called "band folding" technique, which further validate the "folding" technique on L3 cavities for nanocavity realization with efficient free-space coupling and high Q factors.