Search

Your search keyword '"Checoury, X."' showing total 16 results
Start Over Author "Checoury, X." Journal applied physics letters
16 results on '"Checoury, X."'

1. III-Nitride-on-silicon microdisk lasers from the blue to the deep ultra-violet

Author

Sellés, J., primary, Crepel, V., additional, Roland, I., additional, El Kurdi, M., additional, Checoury, X., additional, Boucaud, P., additional, Mexis, M., additional, Leroux, M., additional, Damilano, B., additional, Rennesson, S., additional, Semond, F., additional, Gayral, B., additional, Brimont, C., additional, and Guillet, T., additional

Published
2016
Full Text
View/download PDF

5. Schottky electroluminescent diodes with n-doped germanium

Author

Prost, M., primary, El Kurdi, M., additional, Ghrib, A., additional, Checoury, X., additional, Zerounian, N., additional, Aniel, F., additional, Beaudoin, G., additional, Sagnes, I., additional, Baudot, C., additional, Boeuf, F., additional, and Boucaud, P., additional

Published
2014
Full Text
View/download PDF

6. Tensile-strained germanium microdisks

Author

Ghrib, A., primary, El Kurdi, M., additional, de Kersauson, M., additional, Prost, M., additional, Sauvage, S., additional, Checoury, X., additional, Beaudoin, G., additional, Sagnes, I., additional, and Boucaud, P., additional

Published
2013
Full Text
View/download PDF

12. 1.5μm room-temperature emission of square-lattice photonic-crystal waveguide lasers with a single line defect

Author

Checoury, X., primary, Boucaud, P., additional, Lourtioz, J.-M., additional, Gauthier-Lafaye, O., additional, Bonnefont, S., additional, Mulin, D., additional, Valentin, J., additional, Lozes-Dupuy, F., additional, Pommereau, F., additional, Cuisin, C., additional, Derouin, E., additional, Drisse, O., additional, Legouezigou, L., additional, Lelarge, F., additional, Poingt, F., additional, Duan, G. H., additional, and Talneau, A., additional

Published
2005
Full Text
View/download PDF

13. Tailoring holes for improving the efficiency of single-mode photonic crystal waveguide lasers on InP substrate.

Author

Checoury, X., Boucaud, P., Li, X., Lourtioz, J.-M., Derouin, E., Drisse, O., Poingt, F., Legouezigou, L., Legouezigou, O., Pommereau, P., and Duan, G.-H.

Subjects
*LASERS, *WAVEGUIDES, *PHOTONICS, *FINITE differences, *NONLINEAR optics, *LIGHT amplifiers
Abstract

The authors show that the use of triangular lattice photonic crystals (PhCs) with wide holes can significantly improve the lasing performances of PhC waveguides in the InP substrate approach. The study is carried out on W2-3 waveguides made in PhCs whose air filling factor is varied from ∼25% to 55%. Intrinsically single-mode laser emissions with reduced threshold (/2) are obtained when the laser mode folds deeply into the gap. Concurrently, the slope of the light-light characteristic is increased by a factor of 14. The laser spectral behavior and threshold evolution are explained from three-dimensional finite difference time domain calculations. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

14. Quality factor control of Si-based two-dimensional photonic crystals with a Bragg mirror.

Author

Li, X., Boucaud, P., Checoury, X., El Kurdi, M., David, S., Sauvage, S., Yam, N., Fossard, F., Bouchier, D., Fédéli, J. M., Salomon, A., Calvo, V., and Hadji, E.

Subjects
CRYSTAL lattices, SILICON, REFRACTIVE index, BRAGG gratings, DIFFRACTION gratings, PHOTOLUMINESCENCE, ELECTRON beam lithography, PHOTONICS
Abstract

We have investigated the coupling between two-dimensional photonic crystals and a distributed Bragg reflector by fabricating silicon-based photonic crystals on top of a one-dimensional Bragg mirror. The two-dimensional photonic crystals contain Ge/Si self-assembled islands as an internal source covering the 1.1–1.6 μm spectral range. We show that we can control the quality factor of Bloch modes by varying the thickness of the silicon layer on top of the Bragg mirror. Quality factors up to 2200 are obtained for optical radiative modes collected from the surface for a photonic crystal with a square lattice pattern. The variation of the quality factor as a function of the thickness of the upper layer is confirmed by three-dimensional finite-difference time domain calculations of the investigated structures. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

15. 1.5 μm room-temperature emission of square-lattice photonic-crystal waveguide lasers with a single line defect.

Author

Checoury, X., Boucaud, P., Lourtioz, J.-M., Gauthier-Lafaye, O., Bonnefont, S., Mulin, D., Valentin, J., Lozes-Dupuy, F., Pommereau, F., Cuisin, C., Derouin, E., Drisse, O., Legouezigou, L., Lelarge, F., Poingt, F., Duan, G. H., and Talneau, A.

Subjects
*WAVEGUIDES, *PHOTONICS, *LASERS, *CRYSTAL defects, *CRYSTAL lattices, *TEMPERATURE
Abstract

Narrow waveguides consisting of a single defect-line (W1) in a square lattice photonic crystal are fabricated on InP using the substrate approach. A single-mode distributed-feedback laser emission is obtained under optical pumping at room temperature. Lasing occurs at the second folding point of the dispersion curve of the fundamental waveguide mode (wave vector k=0). The emitted wavelength ranges from 1420 to 1580 nm for a lattice period varying from 460 to 520 nm and a constant air filling factor of ∼26%. The highly monomode behavior is explained using two-dimensional plane-wave models. Similar experiments conducted on triangular lattice W1 waveguides do not yield a laser emission. Three-dimensional simulations confirm that triangular lattice W1 waveguides suffer higher losses than their square homologues. [ABSTRACT FROM AUTHOR]

Published
2005
Full Text
View/download PDF

16. Distributed feedback regime of photonic crystal waveguide lasers at 1.5 μm.

Author

Checoury, X., Boucaud, P., Lourtioz, J-M., Pommereau, F., Cuisin, C., Derouin, E., Drisse, O., Legouezigou, L., Lelarge, F., Poingt, F., Duan, G. H., Mulin, D., Bonnefont, S., Gauthier-Lafaye, O., Valentin, J., Lozes, F., and Talneau, A.

Subjects
*WAVEGUIDES, *ELECTRIC waves, *ELECTRICAL conductors, *ELECTROMAGNETIC waves, *PHOTONS, *LASERS
Abstract

Lasing of W3 and W2/3 triangular lattice photonic crystal waveguides on InP substrate is investigated around 1.5 μm by optical pumping. The lattice period of the fabricated structures is varied from 320 to 540 nm by steps of 20 nm, thereby leading to a detailed exploration of the lasing mechanism over a large frequency range. A distributed-feedback-laser- (DFB-) like-emission is observed above the gap (W3), while a genuine DFB laser emission is obtained in the gap (W2/3). Side-mode suppression ratios can reach 40 dB when an antireflecting coating is used on the cleaved output facet. Experimental results including light–light characteristics are analyzed in the framework of two-dimensional plane-wave calculations. [ABSTRACT FROM AUTHOR]

Published
2004
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results