197,554 research outputs found
Discours prononcé par M. Albert Sorel à la rentrée solennelle de l’université de Lille
No full textSorel Albert. Discours prononcé par M. Albert Sorel à la rentrée solennelle de l’université de Lille. In: La revue pédagogique, tome 32, Janvier-Juin 1898. pp. 135-146
La réception de M. Sorel à l’Académie française
No full textCompayré Gabriel. La réception de M. Sorel à l’Académie française. In: Manuel général de l'instruction primaire : journal hebdomadaire des instituteurs. 62e année, tome 31, 1895. pp. 49-51
Second-harmonic generation in AlGaAs-on-insulator waveguides
No full textSecond-harmonic generation is demonstrated in AlGaAs-on-insulator waveguides at telecom wavelengths. Using this material platform, a maximum internal normalized efficiency of 1202 55% W −1 cm −2 is achieved for a 100 fs pulsed excitation wavelength at 1560 nm. This finding is important towards enabling new chip-scale devices for sensing, metrology, and quantum optics
Lo que se aprende de Vico (1889) – Traducción y Presentación por M. Barrios Casares [pp. 293-302; pres. pp. 295-296]
No full textSpanish translation by Manuel Barrios Casares of the German text, by Georges Sorel (1847-1922), What is learned from Vico (1898).Traducción española a cargo de Manuel Barrios Casares del texto en alemán de Georges Sorel (1847-1922) Lo que se aprende de Vico (1898)
Supercontinuum generation in dispersion engineered AlGaAs-on-insulator waveguides
No full textThe effect of engineering the dispersion of AlGaAs-on-insulator (AlGaAs-OI) waveguides on supercontinuum generation is investigated at telecom wavelengths. The pronounced effect the waveguide width has on the nonlinear dynamics governing the supercontinua is systematically analyzed and the coherence of the spectra verified with numerical simulations. Using dispersion engineered AlGaAs-OI waveguides, broadband supercontinua were readily obtained for pulse energies of ∼ 3 pJ and a device length of only 3 mm. The results presented here, further understanding of the design and fabrication of this novel platform and describe the soliton and dispersive wave dynamics responsible for supercontinuum generation. This study showcases the potential of AlGaAs-OI for exploring fundamental physics and realizing highly efficient, compact, nonlinear devices
Étude critique sur «Bonaparte et le Directoire» par M. Albert Sorel
No full textGuyot Raymond, Muret Pierre. Étude critique sur «Bonaparte et le Directoire» par M. Albert Sorel. In: Revue d'histoire moderne et contemporaine, tome 5 N°4,1903. pp. 241-264
Optimized coupler design for slot waveguide ring resonators
No full textThe highly sensitive nature of slot waveguide micro-resonator power couplers is discussed with respect to the resonator geometry and evanescent coupler design. A modified, tri-bar, evanescent field coupler is demonstrated that shows reduced sensitivity to ring radius as compared with conventional couplers, while maintaining a compact beat-length of only a few micrometers. With the measurement of bending losses of curved slot waveguides, critically coupled ring resonators were designed and fabricated, exhibiting a resonance extinction exceeding 22 dB
Design of chirped-coupling sidewall Bragg gratings for narrow linewidth distributed feedback lasers
No full textA chirped-coupling sidewall Bragg grating is proposed to mitigate the nonlinear effects that deteriorate the linewidth in DFB lasers operating at a high power and current regime. This novel grating geometry is analyzed and simulated to extract the optimal design parameters in terms of intra-cavity field distribution. Compared to lasers with uniform Bragg gratings, devices fabricated with a chirped-coupling grating are shown to operate in stable single mode operation over a wider current and power range and exhibit linewidth as narrow as 100 kHz
A. Sorel, Nouveaux essais d'histoire et de critique. Paris, Plon, 1898
No full textC. M. A. Sorel, Nouveaux essais d'histoire et de critique. Paris, Plon, 1898. In: Revue internationale de l'enseignement, tome 36, Juillet-Décembre 1898. pp. 574-575
Étude critique sur «Bonaparte et le Directoire» par M. Albert Sorel. (Suite et fin)
No full textGuyot Raymond, Muret Pierre. Étude critique sur «Bonaparte et le Directoire» par M. Albert Sorel. (Suite et fin). In: Revue d'histoire moderne et contemporaine, tome 5 N°5,1903. pp. 313-339
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