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Xavier Letartre
Researcher at Institut des Nanotechnologies de Lyon
Publications - 277
Citations - 4523
Xavier Letartre is an academic researcher from Institut des Nanotechnologies de Lyon. The author has contributed to research in topics: Photonic crystal & Photonics. The author has an hindex of 36, co-authored 267 publications receiving 4273 citations. Previous affiliations of Xavier Letartre include Lyon College & University of Lyon.
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Journal ArticleDOI
III-V/Si photonics by die-to-wafer bonding
Gunther Roelkens,J. Van Campenhout,Joost Brouckaert,D. Van Thourhout,Roel Baets,P. Rojo Romeo,Philippe Regreny,A. Kazmierczak,Christian Seassal,Xavier Letartre,G. Hollinger,J-M. Fedeli,L. Di Cioccio,Chrystelle Lagahe-Blanchard +13 more
TL;DR: In this article, the integration of a direct bandgap III-V epitaxial layer on top of the SOI waveguide layer by means of a die-to-wafer bonding process is presented.
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Absorption enhancement using photonic crystals for silicon thin film solar cells
Yeonsang Park,Emmanuel Drouard,Ounsi El Daif,Xavier Letartre,Pierre Viktorovitch,Alain Fave,A. Kaminski,Mustapha Lemiti,Christian Seassal +8 more
TL;DR: A design that increases significantly the absorption of a thin layer of absorbing material such as amorphous silicon by patterning a one-dimensional photonic crystal (1DPC) in this layer by coupling the incident light into slow Bloch modes of the 1DPC.
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Efficient power extraction in surface-emitting semiconductor lasers using graded photonic heterostructures
Gangyi Xu,Raffaele Colombelli,Suraj P. Khanna,Ali Belarouci,Xavier Letartre,Lianhe Li,Edmund H. Linfield,A. Giles Davies,Harvey E. Beere,David A. Ritchie +9 more
TL;DR: Grade photonic heterostructures are developed, which localize the symmetric mode in the device centre and confine the antisymmetric modes close to the laser facet, which leads to record-high peak-power surface emission and differential efficiencies in distributed feedback lasers.
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Group velocity and propagation losses measurement in a single-line photonic-crystal waveguide on InP membranes
Xavier Letartre,Christian Seassal,Christian Grillet,Pedro Rojo-Romeo,Pierre Viktorovitch,M. Le Vassor d'Yerville,David Cassagne,C. Jouanin +7 more
TL;DR: In this article, the propagation properties of the latter (group velocity, losses) are extracted from photoluminescence spectra obtained on closed waveguides which act as linear cavities.
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InP-based two-dimensional photonic crystal on silicon: In-plane Bloch mode laser
Christelle Monat,Christian Seassal,Xavier Letartre,P. Regreny,Pedro Rojo-Romeo,Pierre Viktorovitch,M. Le Vassor d'Yerville,David Cassagne,J.P. Albert,E. Jalaguier,S. Pocas,Bernard Aspar +11 more
TL;DR: In this article, defectless two-dimensional photonic crystal structures have been fabricated by drilling holes in a thin multi-quantum-well InP-based heterostructure transferred onto a silicon host wafer.